Added Android code

[wl-app.git] / Android / app / src / main / java / com / moiseum / wolnelektury / view / WebViewFragment.java

diff --git a/Android/app/src/main/java/com/moiseum/wolnelektury/view/WebViewFragment.java b/Android/app/src/main/java/com/moiseum/wolnelektury/view/WebViewFragment.java
new file mode 100644 (file)
index 0000000..38bc5dc
--- /dev/null
+++ b/Android/app/src/main/java/com/moiseum/wolnelektury/view/WebViewFragment.java
@@ -0,0 +1,115 @@
+package com.moiseum.wolnelektury.view;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.View;
+import android.webkit.WebSettings;
+import android.webkit.WebView;
+import android.webkit.WebViewClient;
+import android.widget.Button;
+import android.widget.TextView;
+
+import com.moiseum.wolnelektury.R;
+import com.moiseum.wolnelektury.base.AbstractFragment;
+
+import butterknife.BindView;
+
+/**
+ * @author golonkos.
+ */
+
+public class WebViewFragment extends AbstractFragment {
+
+       private static final String PARAM_URL = "PARAM_URL";
+
+       @BindView(R.id.wvAbout)
+       WebView wvPage;
+       @BindView(R.id.btnBack)
+       Button btnBack;
+       @BindView(R.id.btnRefresh)
+       Button btnRefresh;
+       @BindView(R.id.btnNext)
+       Button btnNext;
+       @BindView(R.id.tvPageError)
+       TextView tvPageError;
+
+       private boolean loadFailed;
+
+       public static Fragment newInstance(String url) {
+               WebViewFragment fragment = new WebViewFragment();
+               Bundle args = new Bundle(1);
+               args.putString(PARAM_URL, url);
+               fragment.setArguments(args);
+               return fragment;
+       }
+
+       @Override
+       public int getLayoutResourceId() {
+               return R.layout.fragment_web_view;
+       }
+
+       @Override
+       public void prepareView(View view, Bundle savedInstanceState) {
+               initWebView();
+       }
+
+       private void initWebView() {
+               wvPage.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
+               wvPage.getSettings().setJavaScriptEnabled(true);
+               wvPage.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
+               wvPage.setWebViewClient(new WebViewClient() {
+
+                       @Override
+                       public boolean shouldOverrideUrlLoading(WebView view, String url) {
+                               wvPage.loadUrl(url);
+                               return true;
+                       }
+
+                       @Override
+                       public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
+                               if (tvPageError == null) {
+                                       return;
+                               }
+                               loadFailed = true;
+                               tvPageError.setVisibility(View.VISIBLE);
+                       }
+
+                       @Override
+                       public void onPageFinished(WebView view, String url) {
+                               super.onPageFinished(view, url);
+                               if (tvPageError == null) {
+                                       return;
+                               }
+                               if (!loadFailed) {
+                                       tvPageError.setVisibility(View.GONE);
+                               }
+                               btnBack.setEnabled(wvPage.canGoBack());
+                               btnNext.setEnabled(wvPage.canGoForward());
+                       }
+               });
+               String url = getArguments().getString(PARAM_URL);
+               wvPage.loadUrl(url);
+
+               btnRefresh.setOnClickListener(new View.OnClickListener() {
+                       @Override
+                       public void onClick(View v) {
+                               loadFailed = false;
+                               wvPage.reload();
+                       }
+               });
+
+               btnBack.setOnClickListener(new View.OnClickListener() {
+                       @Override
+                       public void onClick(View v) {
+                               wvPage.goBack();
+                       }
+               });
+
+               btnNext.setOnClickListener(new View.OnClickListener() {
+                       @Override
+                       public void onClick(View v) {
+                               wvPage.goForward();
+                       }
+               });
+       }
+}