1 files changed, 175 insertions, 0 deletions
diff --git a/WordPress/src/main/java/org/wordpress/android/ui/prefs/LearnMorePreference.java b/WordPress/src/main/java/org/wordpress/android/ui/prefs/LearnMorePreference.java
new file mode 100644
index 000000000..b06932c69
--- /dev/null
+++ b/WordPress/src/main/java/org/wordpress/android/ui/prefs/LearnMorePreference.java
@@ -0,0 +1,175 @@
+package org.wordpress.android.ui.prefs;
+
+import android.annotation.SuppressLint;
+import android.app.Dialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.preference.Preference;
+import android.support.annotation.NonNull;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+import android.view.Gravity;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.Window;
+import android.view.WindowManager;
+import android.webkit.WebResourceError;
+import android.webkit.WebResourceRequest;
+import android.webkit.WebSettings;
+import android.webkit.WebView;
+import android.webkit.WebViewClient;
+
+import org.wordpress.android.R;
+import org.wordpress.android.analytics.AnalyticsTracker;
+import org.wordpress.android.util.AnalyticsUtils;
+import org.wordpress.android.util.ToastUtils;
+
+public class LearnMorePreference extends Preference
+        implements PreferenceHint, View.OnClickListener {
+    private static final String WP_SUPPORT_URL = "https://en.support.wordpress.com/settings/discussion-settings/#default-article-settings";
+    private static final String SUPPORT_MOBILE_ID = "mobile-only-usage";
+    private static final String SUPPORT_CONTENT_JS = "javascript:(function(){" +
+            "var mobileSupport = document.getElementById('" + SUPPORT_MOBILE_ID + "');" +
+            "mobileSupport.style.display = 'inline';" +
+            "var newHtml = '<' + mobileSupport.tagName + '>' + mobileSupport.innerHTML + '</' + mobileSupport.tagName + '>';" +
+            "document.body.innerHTML = newHtml;" +
+            "document.body.setAttribute('style', 'padding:24px 24px 0px 24px !important');" +
+            "})();";
+
+    private String mHint;
+    private Dialog mDialog;
+
+    public LearnMorePreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    protected View onCreateView(@NonNull ViewGroup parent) {
+        super.onCreateView(parent);
+
+        View view = View.inflate(getContext(), R.layout.learn_more_pref, null);
+        view.findViewById(R.id.learn_more_button).setOnClickListener(this);
+
+        return view;
+    }
+
+    @Override
+    public Parcelable onSaveInstanceState() {
+        if (mDialog != null && mDialog.isShowing()) {
+            mDialog.dismiss();
+            return new SavedState(super.onSaveInstanceState());
+        }
+        return super.onSaveInstanceState();
+    }
+
+    @Override
+    public void onRestoreInstanceState(Parcelable state) {
+        if (!(state instanceof SavedState)) {// per documentation, state is always non-null
+            super.onRestoreInstanceState(state);
+        } else {
+            super.onRestoreInstanceState(((SavedState) state).getSuperState());
+            showDialog();
+        }
+    }
+
+    @Override
+    public void onClick(View v) {
+        if (mDialog != null) return;
+
+        AnalyticsUtils.trackWithCurrentBlogDetails(
+                AnalyticsTracker.Stat.SITE_SETTINGS_LEARN_MORE_CLICKED);
+        showDialog();
+    }
+
+    @Override
+    public boolean hasHint() {
+        return !TextUtils.isEmpty(mHint);
+    }
+
+    @Override
+    public String getHint() {
+        return mHint;
+    }
+
+    @Override
+    public void setHint(String hint) {
+        mHint = hint;
+    }
+
+    private void showDialog() {
+        final WebView webView = loadSupportWebView();
+        mDialog = new Dialog(getContext());
+        mDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
+            @Override
+            public void onDismiss(DialogInterface dialog) {
+                webView.stopLoading();
+                mDialog = null;
+            }
+        });
+        mDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
+        mDialog.setContentView(R.layout.learn_more_pref_screen);
+        WindowManager.LayoutParams params = mDialog.getWindow().getAttributes();
+        params.width = WindowManager.LayoutParams.MATCH_PARENT;
+        params.height = WindowManager.LayoutParams.MATCH_PARENT;
+        params.gravity = Gravity.CENTER;
+        params.x = 12;
+        params.y = 12;
+        mDialog.getWindow().setAttributes(params);
+        mDialog.show();
+    }
+
+    @SuppressLint("SetJavaScriptEnabled")
+    private WebView loadSupportWebView() {
+        WebView webView = new WebView(getContext());
+        WebSettings webSettings = webView.getSettings();
+        webSettings.setCacheMode(WebSettings.LOAD_DEFAULT);
+        webSettings.setJavaScriptEnabled(true);
+        webView.setWebViewClient(new LearnMoreClient());
+        webView.loadUrl(WP_SUPPORT_URL);
+        return webView;
+    }
+
+    private static class SavedState extends BaseSavedState {
+        public SavedState(Parcel source) { super(source); }
+
+        public SavedState(Parcelable superState) { super(superState); }
+
+        public static final Parcelable.Creator<SavedState> CREATOR =
+                new Parcelable.Creator<SavedState>() {
+                    public SavedState createFromParcel(Parcel in) { return new SavedState(in); }
+
+                    public SavedState[] newArray(int size) { return new SavedState[size]; }
+                };
+    }
+
+    private class LearnMoreClient extends WebViewClient {
+        @Override
+        public boolean shouldOverrideUrlLoading(WebView webView, String url) {
+            return !WP_SUPPORT_URL.equals(url) && !SUPPORT_CONTENT_JS.equals(url);
+        }
+
+        @Override
+        public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
+            super.onReceivedError(view, request, error);
+
+            if (mDialog != null && mDialog.isShowing()) {
+                ToastUtils.showToast(getContext(), R.string.could_not_load_page);
+                mDialog.dismiss();
+            }
+        }
+
+        @Override
+        public void onPageFinished(WebView webView, String url) {
+            super.onPageFinished(webView, url);
+            if (mDialog != null) {
+                AnalyticsUtils.trackWithCurrentBlogDetails(
+                        AnalyticsTracker.Stat.SITE_SETTINGS_LEARN_MORE_LOADED);
+                webView.loadUrl(SUPPORT_CONTENT_JS);
+                mDialog.setContentView(webView);
+                webView.scrollTo(0, 0);
+            }
+        }
+    }
+}