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/***
* Copyright (C) Microsoft. All rights reserved.
* Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
*
* =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
*
* MainPage.xaml.cpp - Implementation of the MainPage and
* FacebookAlbum classes.
* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
****/
#include "pch.h"
#include "MainPage.xaml.h"
#include "Facebook.h"
#include <collection.h>
using namespace FacebookDemo;
using namespace Platform;
using namespace Platform::Collections;
using namespace Windows::Foundation;
using namespace Windows::Foundation::Collections;
using namespace Windows::UI::Xaml;
using namespace Windows::UI::Xaml::Controls;
using namespace Windows::UI::Xaml::Controls::Primitives;
using namespace Windows::UI::Xaml::Data;
using namespace Windows::UI::Xaml::Input;
using namespace Windows::UI::Xaml::Media;
using namespace Windows::UI::Xaml::Navigation;
MainPage::MainPage() { InitializeComponent(); }
/// <summary>
/// Invoked when this page is about to be displayed in a Frame.
/// </summary>
/// <param name="e">Event data that describes how this page was reached. The Parameter
/// property is typically used to configure the page.</param>
void MainPage::OnNavigatedTo(NavigationEventArgs ^ e)
{
(void)e; // Unused parameter
}
void MainPage::LoginButton_Click_1(Platform::Object ^ sender, Windows::UI::Xaml::RoutedEventArgs ^ e)
{
LoginButton->IsEnabled = false; // Disable button to prevent double-login
facebook_client::instance()
.login(L"user_photos")
.then([=]() { AlbumButton->IsEnabled = true; }, pplx::task_continuation_context::use_current());
}
void MainPage::AlbumButton_Click_1(Platform::Object ^ sender, Windows::UI::Xaml::RoutedEventArgs ^ e)
{
using namespace pplx;
AlbumButton->IsEnabled = false;
facebook_client::instance()
.get(L"/me/albums")
.then([](web::json::value v) {
web::json::object& obj = v.as_object();
std::vector<FacebookAlbum ^> albums;
for (auto& elem : obj[L"data"].as_array())
{
albums.push_back(ref new FacebookAlbum(elem[L"name"].as_string(),
elem[L"count"].as_integer(),
elem[L"id"].as_string(),
elem[L"cover_photo"].as_string()));
}
return task_from_result(std::move(albums));
})
.then(
[=](std::vector<FacebookAlbum ^> albums) {
AlbumGrid->ItemsSource = ref new Vector<FacebookAlbum ^>(std::move(albums));
},
task_continuation_context::use_current());
}
String ^ FacebookAlbum::Title::get() { return ref new String(title_.c_str()); }
int FacebookAlbum::Count::get() { return count_; }
ImageSource ^ FacebookAlbum::Preview::get()
{
if (preview_ == nullptr)
{
auto preview_uri = facebook_client::instance().base_uri(true);
preview_uri.append_path(photo_id_);
preview_uri.append_path(L"/picture");
preview_ = ref new Imaging::BitmapImage(ref new Uri(StringReference(preview_uri.to_string().c_str())));
}
return preview_;
}
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