Php on the desktop and php gtk2
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Php on the desktop and php gtk2

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Given at the Zendcon Uncon in 2008. My first "big conference" talk of any sort. PHP-GTK2 twitter client example

Given at the Zendcon Uncon in 2008. My first "big conference" talk of any sort. PHP-GTK2 twitter client example

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  • Tell the starting PHP story, tell the starting C story, blame it all on Andrei
  • Ah, the big argument approaches
  • People forget reasons why you’d want to have a desktop application
  • Using PHP has some great advantages
  • Speed is the big reason to pick C or something similar – stacked against ruby or python though, that’s the only advantage ;)
  • Your computer does not care about HTML.Your shell does not care about HTML.PHP does not care about HTML.Because of all of this, you should not care about HTML.PHP and GTK does not use HTML.PHP and GTK does not build web pages.PHP and GTK does not build web applications.PHP and GTK builds computer programs.- From bob Majdak
  • PHP-QT and Win::Gui are in active development if you aren’t worried about cross platformness – wxwidgets appears to be stalled, winbinder is stalled and doesn’t support latest php versions and is functional and is not thread safe (ouch ouch)
  • PHP-QT and Win::Gui are in active development if you aren’t worried about cross platformness – wxwidgets appears to be stalled, winbinder is stalled and doesn’t support latest php versions and is functional and is not thread safe (ouch ouch)
  • Tutorial Ahoy
  • Basic concepts you need to use GTKThe main loop is like locking into a while loop and scripts run continuouslySignals are things that happen, and can have default callbacks or callbacks attached to themGtk is based around the concept of widgets – an item that is used for a specific purposePHP-GTK2 requires PHP OOP knowledgeItems are hidden on creation and can be shown and hidden recursively (using show_all and hide_all) – you can also block a specific widget from being included in an “all” call
  • Using what we just talked aboutLet’s start with a basicgtk window – notice it’s easier to extend the base classConnect the destruction of our main window with stopping theConcepts – signals and connections, the main loop and main_quit, show allNotice if you put PHP after the main(); call it will not be executed until after the main_quit call
  • Introduce a rather specialized widget – gtkstatusiconEverything is a gobject, hierarchy goes from there – most things are gtkwidgets for gtk itselfStock icons are cool and easy – callbacks stop bubbling when you return “true”, timeouts can be used to do something on a regular basis
  • Quick look at stock items on windows – notice the pretty tango default themeThis is a demo from php-gtk2 in the /demos folder
  • You can use php to do the data manipulationTreeviews show hierarchical data – the store or model decides if there are children or notThere are all kinds of renderers – some day we’ll have custom ones ;)
  • First version of the app with the public timeline
  • We begin with packing – do the pixel perfect and resize issue – show how packing is like packing with some hard and some soft containers
  • Concepts: packing and toolbarsMore gtktimeout
  • General concept of dialogs – when is a good time for modal dialogs, when is not a good time
  • Concepts: packing and toolbarsMore gtktimeout
  • Concepts: packing and toolbarsMore gtktimeout
  • Add data in with a gtkentry
  • Concepts: packing and toolbarsMore gtktimeout
  • Here’s the finished app – then I’ll run it in action
  • Twitter API code – just love wheel reinventing – don’t you?
  • Dialog and Statusicon classes
  • Humongo constructor
  • Callbacks part 1 – treeview callbacks for formatting, the minimize override, and the public timeline updater
  • Callbacks part 2, the login and login, update own timeline, and send – also destructor cleanup to not fill up temp and the bootstrap
  • Places to get more information

Php on the desktop and php gtk2 Php on the desktop and php gtk2 Presentation Transcript

  • PHP ON THE DESKTOP AND PHP-GTK2Elizabeth Marie Smith – Zend Uncon 2008
  • ABOUT MEElizabeth Marie Smith• AKA auroraeosrose• Have a very very common name• Was an English Major (minor in Sociology)• Started using PHP for a Manga/Anime fan site (still alive)• Have been using PHP since 4 beta 1 (23-Jul-1999)• Have been using C since Nov of 2006• Love the color Pink• I hate computers• I love programming• Thinks open source on Windows is a “gateway drug”• Works at OmniTI (http://omniti.com)• Am a contributor on various open source projects (includingPHP, PECL and PHP-GTK)
  • IS THE DESKTOP DEAD?
  • THE DESKTOP STILL LIVESReasons For Desktop Applications• People aren’t always online• Some applications would be bandwidthprohibitive• Some data is too sensitive to be passedon the wire• Embedded OSs don’t always work wellwith websites• Browsers are just Quirky (I’m looking at you,IE6, IE7, Opera…)• Current Desktop RIA tools (AIR, Xulrunner, MozillaPrism) are still young (and buggy)
  • WHY USE PHP FOR DESKTOP APPLICATIONSPHP Advantages• No Compiling• Instant Changes• No learning curve for a new language• Plug into PHP extensions• Easy to Use• Fast to Write• Use already familiar libraries and tools
  • WHY USE PHP FOR DESKTOP APPLICATIONSPHP Disadvantages• Speed• Additional Extensions/Libraries needed• Speed• Distribution (phar is helpful there)• Speed• Security (of code – source code encoders might help here)• No threading See the theme?
  • HOW DO I WRITE DESKTOP APPS?PHP CLI• PHP does not care about HTML (really)• PHP works through SAPIS (Server Application Programming Interface) – for the desktop the CLI (Command Line Interface) SAPI is our friend• CLI has no headers, CLI responds to no requests• You need a way to make GUI’s if you don’t want a console app – Just like we wrap other C/C++ libraries we can wrap GUI libraries
  • GUI OPTIONS WITH PHPSo What are your Options?• Well Established • PHP-GTK2 • Winbinder• Works, but not Complete • PHP-QT (no windows support) • WxWidgets (only windows support) • Win::Gui (part of Win::API) Bottom line? For Cross-Platform PHP-GTK works
  • WTH IS GTK?Quick Intro• GTK was Gimp Tool Kit (long long ago)• GTK is GUI Toolkit for Gnome (if you use gnome, you have it already)• GTK has multiple backends (for native Windows and MacOSX apps – you don’t need X on Mac anymore)• To use PHP-GTK you need PHP CLI, GTK, and the PHP-GTK extension• http://oops.opsat.net/doc/install.html - how to install (windows is unzip and run, mac has an installer, ubuntu has .debs – yes this should be in the php-gtk docs, we need volunteers who aren’t afraid of xml)
  • LET’S DO PHP-GTK
  • THE BASICSWhat you need to know to use PHP-GTK• Main Loop• Signals & Callbacks• Widgets• OOP to the Max• Visibility
  • STARTING OUR PROJECTCreate Our initial Window Resulting window<?phpclass Php_Gtk_Twitter_Client extends GtkWindow { public function __construct() { parent::__construct(); $this->set_icon($this->render_icon( Gtk::STOCK_ABOUT, Gtk::ICON_SIZE_DIALOG)); $this->set_size_request(300, 500); $this->set_title(PHP-GTK Twitter Client); $this->connect_simple(destroy, array(Gtk, main_quit)); }}$window = new Php_Gtk_Twitter_Client;$window->show_all();Gtk::main();
  • OVERRIDING BASIC FUNCTIONALITYMinimize to the Taskbar• Specialty Widgets are Cool• GtkStatusIcon – 2.10+• Know your Hierarchy• Stock Icons• Callback “bubbling”• timeouts (timers)
  • STOCK ITEMSDemo from PHP-GTK
  • Minimize to Status Icon MINIMIZE TO TRAY <?php Resulting Window class Php_Gtk_Twitter_Icon extends GtkStatusIcon { protected $alive; protected $lockout; public function __construct() { parent::__construct(); $this->set_from_stock(Gtk::STOCK_ABOUT); $this->set_tooltip(PHP-GTK Twitter Client); while(Gtk::events_pending() || Gdk::events_pending()) { Gtk::main_iteration_do(true); } $this->is_ready(); return; } public function is_ready() { $this->alive = true; if($this->lockout < 5 && !$this->is_embedded()) { Gtk::timeout_add(750,array($this,is_ready)); ++$this->lockout; $this->alive = false; } else if(!$this->is_embedded()) { die("Error: Unable to create Tray Icon. Please insure that your systems tray is enabled.n"); $this->alive = false; } return; } public function activate_window($icon, $window) { if ($window->is_visible()) { $window->hide(); } else { $window->deiconify(); $window->show(); } } } class Php_Gtk_Twitter_Client extends GtkWindow { protected $statusicon; public function __construct() { parent::__construct(); $this->set_icon($this->render_icon(Gtk::STOCK_ABOUT, Gtk::ICON_SIZE_DIALOG)); $this->set_size_request(300, 500); $this->set_title(PHP-GTK Twitter Client); $this->connect_simple(destroy, array(Gtk, main_quit)); $this->statusicon = new Php_Gtk_Twitter_Icon; $this->statusicon->connect(activate, array($this->statusicon, activate_window), $this); $this->set_skip_taskbar_hint(true); $this->connect(window-state-event, array($this, minimize_to_tray)); } public function minimize_to_tray($window, $event) { if ($event->changed_mask == Gdk::WINDOW_STATE_ICONIFIED && $event->new_window_state & Gdk::WINDOW_STATE_ICONIFIED) { $window->hide(); } return true; //stop bubbling } } $window = new Php_Gtk_Twitter_Client; $window->show_all(); Gtk::main();
  • VIEWING DATAData from PHP + a Treeview from GTK• Remember this is PHP• Treeview has a model and view• ListStore is a single level model• Treeviews need Columns• Columns need Renderers• Different types of Renderers
  • MY TWITTER APIHTTP Streams are GOODI really don’t believe in wheel inventing , especially when I have little experience with the subject. However there is an issue – everyexisting twitter API uses curl – and I don’t want to depend on an extension that isn’t always installed. protected function process($url, $date = 0, $type = GET, $data = null) { // add caching header $this->headers[0] = If-Modified-Since: . date(DATE_RFC822, $date); $options = array( http => array( method => $type, header => $this->headers) ); if (!is_null($data)) { $options[http][content] = http_build_query($data); } $context = stream_context_create($options); if ($this->username && $this->password) { $base = http:// . urlencode($this->username) . : . urlencode($this->password) . @twitter.com/; } else { $base = http://twitter.com/; } set_error_handler(array($this,swallow_error)); $string = file_get_contents($base . $url, false, $context); restore_error_handler(); return json_decode($string); }
  • MINIMIZE TO TRAY Put a Treeview in the Window – this goes in __construct Callbacks for showing Images and Messages$this->temp = sys_get_temp_dir() . php-gtk-twitter-api-cache; public function show_user($column, $cell, $store, $position) {if (!file_exists($this->temp)) { $pic = $store->get_value($position, 1); $name = $this->temp . md5($pic); mkdir($this->temp, null, true); if (isset($this->pic_queue[$name])) {} return; } elseif (isset($this->pic_cached[$name])) { $store = $this->treeview->get_model();$this->twitter = new Php_Gtk_Twitter_Api; if (is_null($store->get_value($position, 0))) { $pixbuf = GdkPixbuf::new_from_file($name . .jpg);// User image pixbuf, user image string, user name, $store->set($position, 0, $pixbuf); $cell->set_property(pixbuf, $pixbuf);// user id, text, favorited, created_at, id } $store = new GtkListStore(GdkPixbuf::gtype, Gobject::TYPE_STRING, return; } Gobject::TYPE_STRING, Gobject::TYPE_LONG, GObject::TYPE_STRING, $this->pic_queue[$name] = array(name => $name, url => $pic, GObject::TYPE_BOOLEAN, GObject::TYPE_STRING, Gobject::TYPE_LONG); pos => $position, cell => $cell); if (empty($this->load_images_timeout)) {$store->set_sort_column_id(7, Gtk::SORT_DESCENDING); $this->load_images_timeout = Gtk::timeout_add(500, array($this, pic_queue)); }$list = $this->twitter->get_public_timeline(); } public function pic_queue() {// stuff the store $pic = array_shift($this->pic_queue);foreach($list as $object) { if (empty($pic)) { $store->append(array(null, $object->user->profile_image_url, $object->user->name, $this->load_images_timeout = null; return true; $object->user->id, $object->text, $object->favorited, $object->created_at, } $object->id)); if (!file_exists($pic[name])) {} file_put_contents($pic[name] . .jpg, file_get_contents($pic[url])); $this->pic_cached[$pic[name]] = $pic[url]; }$this->public_timeline_timeout = Gtk::timeout_add(61000, return true; // keep the timeout going array($this, update_public_timeline)); // every 60 seconds } public function message_markup($column, $cell, $store, $position) {$scrolled = new GtkScrolledWindow(); $user = utf8_decode($store->get_value($position, 2)); $message = utf8_decode($store->get_value($position, 4));$scrolled->set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_ALWAYS); $time = $this->distance($store->get_value($position, 6));$this->add($scrolled);$this->treeview = new GtkTreeView($store); $message = htmlspecialchars_decode($message, ENT_QUOTES);$scrolled->add($this->treeview); $message = str_replace(array(@ . $user, &nbsp;, &), array(<span foreground="#FF6633">@ .$this->treeview->set_property(headers-visible, false); $user . </span>, , &amp;), $message); $cell->set_property(markup, "<b>$user</b>:n$messagen<small>$time</small>");$this->treeview->set_rules_hint(true); }$picture_renderer = new GtkCellRendererPixbuf(); protected function distance($from) { $minutes = round(abs(time() - strtotime($from)) / 60);$picture_column = new GtkTreeViewColumn(Picture, $picture_renderer, pixbuf, 0);$picture_column->set_cell_data_func($picture_renderer, array($this, show_user)); switch(true) {$this->treeview->append_column($picture_column); case ($minutes == 0): return less than 1 minute ago; case ($minutes < 1):$message_renderer = new GtkCellRendererText(); return 1 minute ago;$message_renderer->set_property(wrap-mode, Gtk::WRAP_WORD); case ($minutes <= 55): return $minutes . minutes ago;$message_renderer->set_property(wrap-width, 200); case ($minutes <= 65):$message_renderer->set_property(width, 10); return about 1 hour ago; case ($minutes <= 1439):$message_column = new GtkTreeViewColumn(Message, $message_renderer); return about . round((float) $minutes / 60.0) . hours; case ($minutes <= 2879):$message_column->set_cell_data_func($message_renderer, return 1 day ago; array($this, message_markup)); default: return about . round((float) $minutes / 1440) . days ago;$this->treeview->append_column($message_column); } }$this->treeview->set_resize_mode(Gtk::RESIZE_IMMEDIATE);
  • A WORKING VIEW OF TWITTER MESSAGESIt works! Public Timeline in Action
  • PACKINGPutting other things in a Window• GTK is not “pixel perfect”• Packing is not as hard as it looks• Containers can hold one or many• Remember that a containerexpands to the size of it’s contents
  • TOOLBARS AND STATUSBARSPack the Statusbar, Treeview, and Toolbar in a VBox Create Statusbar and Toolbar$this->statusbar = new GtkStatusBar();// Create a toolbar with login button$tb = new GtkToolbar();$tb->set_show_arrow(false);$this->loginbutton = GtkToolButton::new_from_stock(Gtk::STOCK_JUMP_TO);$this->loginbutton->set_label(Login);$this->loginbutton->connect_simple(clicked, array($this, login));$tb->insert($this->loginbutton, -1);// logout button$this->logoutbutton = GtkToolButton::new_from_stock(Gtk::STOCK_CLOSE);$this->logoutbutton->set_label(Logout);$this->logoutbutton->connect_simple(clicked, array($this, logout));$tb->insert($this->logoutbutton, -1);$this->logoutbutton->set_sensitive(false);With Toolbar, Treeview, and Statusbar$vbox = new GtkVBox();$this->add($vbox);$vbox->pack_start($tb, false, false);$vbox->pack_start($scrolled);$vbox->pack_start($this->statusbar, false, false);Update the Header and Public Timeline using a Gtk::timeoutpublic function update_public_timeline() { $this->pic_queue = array(); $list = $this->twitter->get_public_timeline(); $this->statusbar->pop(1); $this->statusbar->push(1, last updated . date(Y-m-d H:i) . . count($list) . new tweets); $store = $this->treeview->get_model(); $store->clear(); foreach($list as $object) { $store->append(array(null, $object->user->profile_image_url, $object->user->name, $object->user->id, $object->text, $object->favorited, $object->created_at, $object->id)); } return true;}
  • DIALOGSAdditional Windows• Dialogs are cool• Dialogs are usually modal, butnot always• Dialogs can be very general orvery specific• You can put anything inside one
  • LOGIN DIALOG BOXExtends GtkDialog Login Dialogclass Php_Gtk_Twitter_Login_Dialog extends GtkDialog { protected $emailentry; protected $passwordentry; public function __construct($parent) { parent::__construct(Login to Twitter, $parent, Gtk::DIALOG_MODAL, array( Gtk::STOCK_OK, Gtk::RESPONSE_OK, Gtk::STOCK_CANCEL, Gtk::RESPONSE_CANCEL)); $table = new GtkTable(); $email = new GtkLabel(Email:); $table->attach($email, 0, 1, 0, 1); $password = new GtkLabel(Password:); $table->attach($password, 0, 1, 1, 2); $this->emailentry = new GtkEntry(); $table->attach($this->emailentry, 1, 2, 0, 1); $this->passwordentry = new GtkEntry(); $table->attach($this->passwordentry, 1, 2, 1, 2); $this->passwordentry->set_visibility(false); $this->vbox->add($table); $this->errorlabel = new GtkLabel(); $this->vbox->add($this->errorlabel); $this->show_all(); } public function check_login($twitter) { $this->errorlabel->set_text(); $email = $this->emailentry->get_text(); $password = $this->passwordentry->get_text(); if (empty($password) || empty($password)) { $this->errorlabel->set_markup( <span color="red">Name and Password must be entered</span>); return false; } if ($twitter->login($email, $password)) { return true; } else { $this->errorlabel->set_markup( <span color="red">Authentication Error</span>); return false; } }}
  • LOGIN DIALOG BOXCallbacks After Loginpublic function login() { if (!empty($this->load_images_timeout)) { Gtk::timeout_remove($this->load_images_timeout); $readd = true; } Gtk::timeout_remove($this->public_timeline_timeout); $login = new Php_Gtk_Twitter_Login_Dialog($this); while($response = $login->run()) { if ($response == GTK::RESPONSE_CANCEL || $response == GTK::RESPONSE_DELETE_EVENT) { if (isset($readd)) { $this->load_images_timeout = Gtk::timeout_add(500, array($this, pic_queue)); } $this->public_timeline_timeout = Gtk::timeout_add(61000, array($this, update_public_timeline)); $login->destroy(); break; } elseif ($response == GTK::RESPONSE_OK) { if($login->check_login($this->twitter)) { $this->logoutbutton->set_sensitive(true); $this->loginbutton->set_sensitive(false); $login->destroy(); $this->public_timeline_timeout = Gtk::timeout_add( 61000, array($this, update_timeline)); $this->load_images_timeout = Gtk::timeout_add(500, array($this, pic_queue)); $this->treeview->get_model()->clear(); $this->pic_queue = array(); $this->pic_cached = array(); $this->update_timeline(); break; } } } }public function logout() { $this->twitter->logout(); $this->logoutbutton->set_sensitive(false); $this->loginbutton->set_sensitive(true); $this->public_timeline_timeout = Gtk::timeout_add(61000, array($this, update_public_timeline)); // every 60 seconds $this->pic_queue = array(); $this->pic_cached = array(); $this->update_public_timeline(); }
  • DATA ENTRYPutting in Data• GTKEntry• Basic Data Entry – activates onreturn, can set maximum lengthallowed• Simple label for messages –could use a dialog or othermethod of informing the user
  • LOGIN DIALOG BOXPacking it in Creating the Entries$vbox = new GtkVBox(); // Create an update area$this->add($vbox); $this->updateentry = new GtkEntry();$vbox->pack_start($tb, false, false); $this->updateentry->set_max_length(140);$scrolled = new GtkScrolledWindow(); $this->updateentry->set_sensitive(false);$scrolled->set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_ALWAYS); $this->updateentry->connect(activate,$vbox->pack_start($scrolled); array($this, send_update));$vbox->pack_start(new GtkLabel(What are you doing?), false, false); $this->entrystatus = new GtkLabel();$vbox->pack_start($this->updateentry, false, false);$vbox->pack_start($this->entrystatus, false, false);$vbox->pack_start($this->statusbar, false, false);The Callback on Activatepublic function send_update($entry) { if ($this->twitter->send($entry->get_text())) { $this->entrystatus->set_text(Message Sent); $this->update_timeline(); $this->updateentry->set_text(); } else { $this->entrystatus->set_markup(‘ <span color="red">Error Sending Message - Try Again</span>); } }
  • PHP-GTK TWITTER CLIENTCompleted App
  • COMPLETED CODEFinal Code, all 492 linesclass Php_Gtk_Twitter_Api { public function get_timeline() { protected $login = false; if ($this->login && $this->can_call()) { protected $username; if (empty($this->lastid)) { protected $password; $data = $this->process(statuses/friends_timeline.json); } else { $data = $this->process(statuses/friends_timeline.json, $this->lasttime, protected $cached_public; GET, array(since_id => $this->lastid)); } protected $cached_public_timestamp = 0; if ($data) { $this->lastid = $data[0]->id; } protected $lastid = 0; $this->lasttime = time(); return $data; protected $headers = array } } (, X-Twitter-Client: PHP-GTK Twitter Client, public function send($message) { X-Twitter-Client-Version: 0.1.0-dev, if ($this->login && $this->can_call()) { X-Twitter-Client-URL: http://elizabethmariesmith.com); $data = $this->process(statuses/update.json, 0, POST, array(status => $message)); if ($data) { return true; public function login($username, $password) { } $this->username = $username; return false; } $this->password = $password; } $worked = $this->process(account/verify_credentials.json); protected function can_call() { if ($worked && $worked->authorized == true) { if (!$this->login) { $this->login = true; return false; } return true; $worked = $this->process(account/rate_limit_status.json); } return ($worked->remaining_hits > 1); return false; } } protected function process($url, $date = 0, $type = GET, $data = null) { // add caching header $this->headers[0] = If-Modified-Since: . date(DATE_RFC822, $date); public function logout() { $this->username = null; $options = array( http => array( $this->password = null; method => $type, $this->login = false; header => $this->headers) $this->process(account/end_session, 0, POST); ); if (!is_null($data)) { } $options[http][content] = http_build_query($data); } $context = stream_context_create($options); public function get_public_timeline() { if ($this->username && $this->password) { if ($this->cached_public_timestamp < time()) { $base = http:// . urlencode($this->username) . : . urlencode($this->password) . @twitter.com/; $this->cached_public = } else { json_decode(file_get_contents( $base = http://twitter.com/; } http://twitter.com/statuses/public_timeline.json)); set_error_handler(array($this,swallow_error)); $this->cached_public_timestamp = time() + 60; $string = file_get_contents($base . $url, false, $context); restore_error_handler(); // caches every 60 seconds return json_decode($string); } } return $this->cached_public; public function swallow_error($errno, $errstr) {} // this should be treated as private } }
  • COMPLETED CODEFinal Code, all 492 linesclass Php_Gtk_Twitter_Login_Dialog extends GtkDialog { class Php_Gtk_Twitter_Icon extends GtkStatusIcon { protected $emailentry; protected $passwordentry; protected $alive; protected $lockout; public function __construct($parent) { parent::__construct(Login to Twitter, public function __construct() { $parent, Gtk::DIALOG_MODAL, parent::__construct(); array(Gtk::STOCK_OK, Gtk::RESPONSE_OK, Gtk::STOCK_CANCEL, Gtk::RESPONSE_CANCEL)); $this->set_from_stock(Gtk::STOCK_ABOUT); $table = new GtkTable(); $this->set_tooltip(PHP-GTK Twitter Client); $email = new GtkLabel(Email:); $table->attach($email, 0, 1, 0, 1); while(Gtk::events_pending() || Gdk::events_pending()) { $password = new GtkLabel(Password:); Gtk::main_iteration_do(true); $table->attach($password, 0, 1, 1, 2); } $this->emailentry = new GtkEntry(); $this->is_ready(); $table->attach($this->emailentry, 1, 2, 0, 1); return; $this->passwordentry = new GtkEntry(); } $table->attach($this->passwordentry, 1, 2, 1, 2); $this->passwordentry->set_visibility(false); public function is_ready() { $this->vbox->add($table); $this->alive = true; $this->errorlabel = new GtkLabel(); $this->vbox->add($this->errorlabel); if($this->lockout < 5 && !$this->is_embedded()) { $this->show_all(); Gtk::timeout_add(750,array($this,is_ready)); } ++$this->lockout; $this->alive = false; public function check_login($twitter) { } else if(!$this->is_embedded()) { $this->errorlabel->set_text(); die("Error: Unable to create Tray Icon. $email = $this->emailentry->get_text(); Please insure that your systems tray is enabled.n"); $password = $this->passwordentry->get_text(); $this->alive = false; if (empty($password) || empty($password)) { } $this->errorlabel->set_markup( <span color="red">Name and Password must be entered</span>); return; return false; } } if ($twitter->login($email, $password)) { return true; public function activate_window($icon, $window) { } else { if ($window->is_visible()) { $this->errorlabel->set_markup( $window->hide(); <span color="red">Authentication Error</span>); } else { return false; $window->deiconify(); } $window->show(); } }} }
  • COMPLETED CODEFinal Code, all 492 linesclass Php_Gtk_Twitter_Client extends GtkWindow { foreach($list as $object) { $store->append(array(null, $object->user->profile_image_url, protected $statusicon; protected $twitter; $object->user->name, $object->user->id, protected $treeview; $object->text, $object->favorited, $object->created_at, protected $statusbar; $object->id)); protected $temp; } protected $pic_queue = array(); protected $pic_cached = array(); $this->public_timeline_timeout = Gtk::timeout_add(61000,, protected $public_timeline_timeout; array($this, update_public_timeline)); // every 60 seconds protected $load_images_timeout; public function __construct() { parent::__construct(); $this->set_icon($this->render_icon(Gtk::STOCK_ABOUT, Gtk::ICON_SIZE_DIALOG)); $vbox = new GtkVBox(); $this->set_size_request(300, 500); $this->add($vbox); $this->set_title(PHP-GTK Twitter Client); $this->connect_simple(destroy, array(Gtk, main_quit)); $vbox->pack_start($tb, false, false); $scrolled = new GtkScrolledWindow(); $this->statusicon = new Php_Gtk_Twitter_Icon; $scrolled->set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_ALWAYS); $this->statusicon->connect(activate, array($this->statusicon, activate_window), $this); $vbox->pack_start($scrolled); $this->set_skip_taskbar_hint(true); $this->treeview = new GtkTreeView($store); $this->connect(window-state-event, array($this, minimize_to_tray)); $scrolled->add($this->treeview); $this->temp = sys_get_temp_dir() . php-gtk-twitter-api-cache; $this->treeview->set_property(headers-visible, false); if (!file_exists($this->temp)) { mkdir($this->temp, null, true); $this->treeview->set_rules_hint(true); } $vbox->pack_start(new GtkLabel(What are you doing?), false, false); $this->twitter = new Php_Gtk_Twitter_Api; $vbox->pack_start($this->updateentry, false, false); $this->statusbar = new GtkStatusBar(); $vbox->pack_start($this->entrystatus, false, false); // Create a toolbar with login button $vbox->pack_start($this->statusbar, false, false); $tb = new GtkToolbar(); $tb->set_show_arrow(false); $picture_renderer = new GtkCellRendererPixbuf(); $this->loginbutton = GtkToolButton::new_from_stock(Gtk::STOCK_JUMP_TO); $this->loginbutton->set_label(Login); $picture_column = new GtkTreeViewColumn(Picture, $this->loginbutton->connect_simple(clicked, array($this, login)); $picture_renderer, pixbuf, 0); $tb->insert($this->loginbutton, -1); $picture_column->set_cell_data_func($picture_renderer, // logout button, hide it array($this, show_user)); $this->logoutbutton = GtkToolButton::new_from_stock(Gtk::STOCK_CLOSE); $this->logoutbutton->set_label(Logout); $this->treeview->append_column($picture_column); $this->logoutbutton->connect_simple(clicked, array($this, logout)); $tb->insert($this->logoutbutton, -1); $this->logoutbutton->set_sensitive(false); $message_renderer = new GtkCellRendererText(); $message_renderer->set_property(wrap-mode, Gtk::WRAP_WORD); // Create an update area $message_renderer->set_property(wrap-width, 200); $this->updateentry = new GtkEntry(); $this->updateentry->set_max_length(140); $message_renderer->set_property(width, 10); $this->updateentry->set_sensitive(false); $this->updateentry->connect(activate, array($this, send_update)); $this->entrystatus = new GtkLabel(); $message_column = new GtkTreeViewColumn(Message, $message_renderer); // User image pixbuf, user image string, user name, user id, text, favorited, created_at, id $store = new GtkListStore(GdkPixbuf::gtype, Gobject::TYPE_STRING, Gobject::TYPE_STRING, $message_column->set_cell_data_func($message_renderer, Gobject::TYPE_LONG, GObject::TYPE_STRING, GObject::TYPE_BOOLEAN array($this, message_markup)); , GObject::TYPE_STRING, $this->treeview->append_column($message_column); Gobject::TYPE_LONG); $store->set_sort_column_id(7, Gtk::SORT_DESCENDING); $this->treeview->set_resize_mode(Gtk::RESIZE_IMMEDIATE); $list = $this->twitter->get_public_timeline(); $this->statusbar->push(1, last updated . date(Y-m-d H:i) . - . count($list) . new tweets); }
  • COMPLETED CODEFinal Code, all 492 linespublic function show_user($column, $cell, $store, $position) { protected function distance($from) { $pic = $store->get_value($position, 1); $minutes = round(abs(time() - strtotime($from)) / 60); $name = $this->temp . md5($pic); if (isset($this->pic_queue[$name])) { switch(true) { return; case ($minutes == 0): } elseif (isset($this->pic_cached[$name])) { return less than 1 minute ago; $store = $this->treeview->get_model(); case ($minutes < 1): if (is_null($store->get_value($position, 0))) { $pixbuf = GdkPixbuf::new_from_file($name . .jpg); return 1 minute ago; $store->set($position, 0, $pixbuf); case ($minutes <= 55): $cell->set_property(pixbuf, $pixbuf); return $minutes . minutes ago; } case ($minutes <= 65): return; return about 1 hour ago; } case ($minutes <= 1439): $this->pic_queue[$name] = array(name => $name, url => $pic, return about . round((float) $minutes / 60.0) . hours; pos => $position, cell => $cell); case ($minutes <= 2879): if (empty($this->load_images_timeout)) { $this->load_images_timeout = Gtk::timeout_add(500, return 1 day ago; default: array($this, pic_queue)); } return about . round((float) $minutes / 1440) . days ago; } } } public function pic_queue() { $pic = array_shift($this->pic_queue); public function minimize_to_tray($window, $event) { if (empty($pic)) { if ($event->changed_mask == Gdk::WINDOW_STATE_ICONIFIED && $this->load_images_timeout = null; $event->new_window_state & Gdk::WINDOW_STATE_ICONIFIED) { return true; $window->hide(); } if (!file_exists($pic[name])) { } file_put_contents($pic[name] . .jpg, return true; //stop bubbling file_get_contents($pic[url])); } $this->pic_cached[$pic[name]] = $pic[url]; } public function update_public_timeline() { return true; // keep the timeout going $this->pic_queue = array(); } $list = $this->twitter->get_public_timeline(); $this->statusbar->pop(1); public function message_markup($column, $cell, $store, $this->statusbar->push(1, last updated . $position) { date(Y-m-d H:i) . - . count($list) . new tweets); $user = utf8_decode($store->get_value($position, 2)); $store = $this->treeview->get_model(); $message = utf8_decode($store->get_value($position, 4)); $store->clear(); $time = $this->distance($store->get_value($position, 6)); foreach($list as $object) { $message = htmlspecialchars_decode($message, ENT_QUOTES); $store->append(array(null, $object->user->profile_image_url, $message = str_replace(array(@ . $user, &nbsp;, &), array( $object->user->name, $object->user->id, $object->text, <span foreground="#FF6633">@ $object->favorited, $object->created_at, . $user . </span>, , &amp;), $message); $object->id)); $cell->set_property(markup, } "<b>$user</b>:n$messagen<small>$time</small>"); return true; } }
  • COMPLETED CODE Final Code, all 492 linespublic function update_timeline() { public function logout() { $list = $this->twitter->get_timeline(); $this->statusbar->pop(1); $this->twitter->logout(); $this->statusbar->push(1, last updated . date(Y-m-d H:i) . - $this->logoutbutton->set_sensitive(false); . count($list) . new tweets); $this->loginbutton->set_sensitive(true); $store = $this->treeview->get_model(); foreach($list as $object) { $this->public_timeline_timeout = Gtk::timeout_add(61000, array($this, $store->append(array(null, $object->user->profile_image_url, update_public_timeline)); // every 60 seconds $object->user->name, $object->user->id, $object->text, $this->pic_queue = array(); $object->favorited, $object->created_at, $this->pic_cached = array(); $object->id)); } $this->update_public_timeline(); return true; $this->updateentry->set_sensitive(false); } } public function login() { if (!empty($this->load_images_timeout)) { public function send_update($entry) { Gtk::timeout_remove($this->load_images_timeout); $readd = true; if ($this->twitter->send($entry->get_text())) { } $this->entrystatus->set_text(Message Sent); Gtk::timeout_remove($this->public_timeline_timeout); $this->update_timeline(); $login = new Php_Gtk_Twitter_Login_Dialog($this); while($response = $login->run()) { $this->updateentry->set_text(); if ($response == GTK::RESPONSE_CANCEL || } else { $response == GTK::RESPONSE_DELETE_EVENT) { $this->entrystatus->set_markup(<span color="red"> if (isset($readd)) { $this->load_images_timeout = Gtk::timeout_add(500, Error Sending Message - Try Again</span>); array($this, pic_queue)); } } } $this->public_timeline_timeout = Gtk::timeout_add(61000, array($this, update_public_timeline)); // every 60 seconds $login->destroy(); public function __destruct() { break; foreach(scandir($this->temp) as $filename) { } elseif ($response == GTK::RESPONSE_OK) { if ($filename[0] == .) if($login->check_login($this->twitter)) { $this->logoutbutton->set_sensitive(true); continue; $this->loginbutton->set_sensitive(false); if (file_exists($this->temp . $filename)) { $login->destroy(); $this->public_timeline_timeout = Gtk::timeout_add(61000, unlink($this->temp . $filename); array($this, update_timeline)); // every 60 seconds } $this->load_images_timeout = Gtk::timeout_add(500, } array($this, pic_queue)); } $this->treeview->get_model()->clear(); $this->pic_queue = array(); } $this->pic_cached = array(); $window = new Php_Gtk_Twitter_Client; $this->update_timeline(); $window->show_all(); $this->updateentry->set_sensitive(true); break; Gtk::main(); } } } }
  • RESOURCESWrapping it up• Slides • http://callicore.net/php-gtk/php-on-the-desktop.pdf• Code • http://callicore.net/php-gtk/php-gtk-twitter.zip• GTK docs • http://gtk.org • http://pygtk.org • http://gtk.php.net/docs.php • http://leonpegg.com/php-gtk-doc/phpweb/ • http://kksou.com • http://oops.opsat.net • http://php-gtk.eu• Me • http://elizabethmariesmith.com • http://callicore.net • http://callicore.net/php-gtk • auroraeosrose@php.net THANKS