daemon/screenshot: Support uploading to web services

Resolves BuddiesOfBudgie#281.

Initially support imgur, imagebin and 0x0. Based on cybre's
screen shotshot applet but ported to libsoup3.

meson.build

@@ -34,7 +34,9 @@ dep_gtk3 = dependency('gtk+-3.0', version: '>= 3.24.0')
 dep_glib = dependency('glib-2.0', version: '>= 2.64.0')
 dep_gee = dependency('gee-0.8', version: '>= 0.20.0')
 dep_giounix = dependency('gio-unix-2.0', version: '>= 2.64.0')
+dep_jsonglib = dependency('json-glib-1.0', version: '>= 1.6.6')
 dep_peas = dependency('libpeas-1.0', version: '>= 1.26.0')
+dep_soup3 = dependency('libsoup-3.0', version: '>= 3.2.0')
 dep_gdkx11 = dependency('gdk-x11-3.0', version: '>= 3.24.0')
 dep_libuuid = dependency('uuid')
 dep_vala = dependency('vapigen', version: '>= 0.52.5')

src/daemon/meson.build

@@ -28,6 +28,7 @@ daemon_sources = [
     'notifications/dbus.vala',
     'notifications/popup.vala',
     'screenshot.vala',
+    'screenshot_uploader.vala',
     'main.vala',
     'manager.vala',
     'menus.vala',
@@ -43,10 +44,12 @@ daemon_deps = [
     dep_giounix,
     dep_gtk3,
     dep_gdkx11,
+    dep_jsonglib,
     dep_notify,
     dep_wnck,
     dep_gst,
     dep_cairo,
+    dep_soup3,
     link_libbudgieprivate,
     libpanelplugin_vapi,
     link_libappsys,
@@ -84,6 +87,8 @@ executable(
         '--pkg', 'gio-unix-2.0',
         '--pkg', 'gtk+-3.0',
         '--pkg', 'gdk-x11-3.0',
+        '--pkg', 'json-glib-1.0',
+        '--pkg', 'libsoup-3.0',
         '--pkg', 'libwnck-3.0',
         # Make gresource work
         '--target-glib=2.38',

src/daemon/screenshot.vala

@@ -826,8 +826,6 @@ namespace BudgieScr {
 				if (pixfile.query_exists()) {
 					try {
 						Pixbuf pxb = new Gdk.Pixbuf.from_file(windowstate.tempfile_path);
-						delete_file(pixfile);
-
 						return pxb;
 					} catch (Error e) {
 						message("unable to load image from /tmp\n");
@@ -850,6 +848,12 @@ namespace BudgieScr {
 			} else {
 				makeaftershotwindow(pxb);
 			}
+			this.destroy.connect(() => {
+				var file = File.new_for_path(windowstate.tempfile_path);
+				if (file.query_exists() == true) {
+					delete_file(file);
+				}
+			});
 		}
 
 		private void makeaftershotwindow(Pixbuf pxb) {
@@ -898,13 +902,15 @@ namespace BudgieScr {
 				_("Cancel screenshot"),
 				_("Save screenshot to the selected directory"),
 				_("Copy screenshot to the clipboard"),
-				_("Open screenshot in default application")
+				_("Open screenshot in default application"),
+				_("Upload screenshot to a web service")
 			};
 			string[] header_imagenames = {
 				"trash-shot-symbolic",
 				"save-shot-symbolic",
 				"clipboard-shot-symbolic",
-				"edit-shot-symbolic"
+				"edit-shot-symbolic",
+				"emblem-shared-symbolic"
 			};
 
 			int currbutton = 0;
@@ -975,10 +981,93 @@ namespace BudgieScr {
 				}
 			});
 
+			// upload to web service
+			decisionbuttons[4].clicked.connect(() => {
+				var path = save_tmp_jpeg_file(pxb);
+				make_providers_popover(decisionbuttons[4], clp, path);
+			});
+
 			this.set_titlebar(bar);
 			this.show_all();
 		}
 
+		// Creates a popover menu where the screenshot can be uploaded to a web provider
+		private Gtk.Popover make_providers_popover(Gtk.Button button, Clipboard clp, string imagepath) {
+			var padding = 5;
+
+			// Menu popover on share btn click
+			var providerspopover = new Gtk.Popover(button);
+			providerspopover.set_position(Gtk.PositionType.BOTTOM);
+			// Master container for all other boxes
+			var containerbox = new Gtk.Box(Gtk.Orientation.VERTICAL, padding);
+			// Box for selecting a web provider and uploading to it
+			var providersbox = new Gtk.Box(Gtk.Orientation.HORIZONTAL, padding);
+			// Box to display uploaded URLs
+			var urlsbox = new Gtk.Box(Gtk.Orientation.VERTICAL, padding);
+
+			containerbox.pack_start(providersbox, false, false, padding);
+			containerbox.add(urlsbox);
+			providerspopover.add(containerbox);
+
+			var providerslabel = new Gtk.Label("Provider:");
+			providersbox.pack_start(providerslabel, true, false, padding);
+
+			// Populate combobox with providers
+			var combobox = new Gtk.ComboBoxText();
+			foreach (var p in Uploader.provider) {
+				combobox.append_text(Uploader.provider_string_to_display(p));
+			}
+			combobox.set_active(0);
+			// Initialize provider from idx 0
+			string chosenprovider = combobox.get_active_text();
+			combobox.changed.connect(() => {
+				chosenprovider = combobox.get_active_text();
+			});
+			providersbox.add(combobox);
+
+			// Create upload button
+			var uploadbutton = new Gtk.Button();
+			var uploadicon =  new ThemedIcon(name = "cloud-upload");
+			var uploadimage = new Gtk.Image.from_gicon(uploadicon,Gtk.IconSize.DND);
+			uploadimage.pixel_size = 16;
+			uploadimage.margin_start = padding;
+			uploadimage.margin_end = padding;
+			uploadbutton.add(uploadimage);
+			uploadbutton.get_style_context().add_class(Gtk.STYLE_CLASS_SUGGESTED_ACTION);
+			providersbox.pack_end(uploadbutton, false, false, padding);
+
+			// Upload to provider on clicked
+			uploadbutton.clicked.connect(() => {
+				string? link = null;
+				bool status = false;
+				status = Uploader.upload_to_provider(chosenprovider, imagepath, out link);
+
+				if (link == null || status == false) {
+					var failed_label = new Gtk.Label("Failed to get a response");
+					urlsbox.add(failed_label);
+					warning("Failed to get response from provider: %s\n", chosenprovider);
+				}
+				if (link != null) {
+					clp.set_text(link, link.length);
+					// TODO: Save the URLs for later incase popover is destroyed
+					var link_btn = new Gtk.LinkButton.with_label(link, link);
+					urlsbox.add(link_btn);
+					providerspopover.show_all();
+				}
+			});
+
+			providerspopover.show_all();
+
+			this.destroy.connect(() => {
+				var file = File.new_for_path(imagepath);
+				if (file.query_exists() == true) {
+					delete_file(file);
+				}
+			});
+
+			return providerspopover;
+		}
+
 		private void open_indefaultapp(string path) {
 			File file = File.new_for_path(path);
 			if (file.query_exists()) {
@@ -1008,6 +1097,25 @@ namespace BudgieScr {
 			return now.format(@"Snapshot_%F_%H-%M-%S.$extension");
 		}
 
+		// Convert pixbuf to a slightly compressed jpeg for uploading to a web service
+		private string save_tmp_jpeg_file(Pixbuf pxb) {
+			var extension = "jpeg";
+			var username = Environment.get_user_name();
+			var tmpdir = Environment.get_tmp_dir();
+			var tempfile_path = GLib.Path.build_path(GLib.Path.DIR_SEPARATOR_S, tmpdir, username + "_budgiescreenshot_tempfile." + extension);
+
+			string[] option_keys = {"quality"};
+			string[] option_values = {"85"};
+
+			try {
+				pxb.savev(tempfile_path, extension, option_keys, option_values);
+			} catch (Error e) {
+				warning("save_tmp_jpeg_file failed, reason: %s\n", e.message);
+				return "fail";
+			}
+			return tempfile_path;
+		}
+
 		private string save_tofile(Gtk.Entry entry, ComboBox combo, Pixbuf pxb) {
 			string? found_dir = get_path_fromcombo(combo);
 			string fname = entry.get_text();