com.esminis.server.library.dialog.about.AboutViewImpl.java Source code

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Here is the source code for com.esminis.server.library.dialog.about.AboutViewImpl.java

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/**
 * Copyright 2016 Tautvydas Andrikys
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.esminis.server.library.dialog.about;

import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Color;
import android.os.Message;
import android.support.annotation.StringRes;
import android.support.v4.content.ContextCompat;
import android.text.Html;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.TabHost;
import android.widget.TextView;

import com.esminis.server.library.R;
import com.esminis.server.library.dialog.DialogImplAlert;
import com.esminis.server.library.widget.ProductLicensesViewer;

public class AboutViewImpl extends DialogImplAlert<AboutPresenter> implements AboutView {

    private final View viewTextAbout;
    private final View viewTextManual;
    private final ProductLicensesViewer viewLicenses;

    public AboutViewImpl(Context context, AboutPresenter presenter) {
        super(context, presenter);
        final LayoutInflater inflater = LayoutInflater.from(context);
        final ViewGroup layout = (ViewGroup) inflater.inflate(R.layout.dialog_about, null);
        final TabHost tabhost = (TabHost) layout.findViewById(R.id.tabhost);
        tabhost.setup();
        addTab(tabhost, context, R.string.manual, viewTextManual = createText(inflater, layout));
        addTab(tabhost, context, R.string.about, viewTextAbout = createText(inflater, layout));
        addTab(tabhost, context, R.string.licenses, viewLicenses = new ProductLicensesViewer(context));
        setupTabTitles(tabhost);
        setView(layout);
        setButton(DialogInterface.BUTTON_NEGATIVE, context.getString(R.string.close), (Message) null);
    }

    @Override
    public void setContentAbout(Context context, @StringRes int content, @StringRes int parameter) {
        setContentText(viewTextAbout, context, content, parameter);
    }

    @Override
    public void setContentManual(Context context, @StringRes int content, @StringRes int parameter) {
        setContentText(viewTextManual, context, content, parameter);
    }

    @Override
    public void setLicensesProvider(ProductLicensesViewer.ProductLicenseProvider provider) {
        viewLicenses.setProvider(provider);
    }

    @Override
    public void setupOnCreate() {
        final Window window = getWindow();
        final WindowManager.LayoutParams params = window.getAttributes();
        params.width = getContext().getResources().getDimensionPixelSize(R.dimen.about_dialog_width);
        params.height = ViewGroup.LayoutParams.WRAP_CONTENT;
        window.setAttributes(params);
    }

    @Override
    public void setupOnShow() {
        final Button button = getButton(DialogInterface.BUTTON_NEGATIVE);
        final ViewGroup.LayoutParams params = button.getLayoutParams();
        button.setTextColor(Color.BLACK);
        button.setTextSize(TypedValue.COMPLEX_UNIT_PX,
                getContext().getResources().getDimensionPixelSize(R.dimen.dialog_button_font_size));
        button.setGravity(Gravity.CENTER);
        params.width = ViewGroup.LayoutParams.MATCH_PARENT;
        button.setLayoutParams(params);
    }

    private void addTab(TabHost tabhost, Context context, @StringRes int title, final View view) {
        TabHost.TabSpec tab = tabhost.newTabSpec(context.getString(title));
        tab.setIndicator(tab.getTag());
        tab.setContent(new TabHost.TabContentFactory() {
            @Override
            public View createTabContent(String tag) {
                return view;
            }
        });
        tabhost.addTab(tab);
    }

    private View createText(LayoutInflater inflater, ViewGroup viewLayout) {
        return inflater.inflate(R.layout.dialog_about_text,
                (ViewGroup) viewLayout.findViewById(android.R.id.tabcontent), false);
    }

    private void setupTabTitles(TabHost tabhost) {
        final int tabCount = tabhost.getTabWidget() == null ? 0 : tabhost.getTabWidget().getTabCount();
        for (int i = 0; i < tabCount; i++) {
            View viewTab = tabhost.getTabWidget().getChildTabViewAt(i);
            if (viewTab != null) {
                View textView = viewTab.findViewById(android.R.id.title);
                if (textView != null && textView instanceof TextView) {
                    ((TextView) textView).setGravity(Gravity.CENTER);
                }
                viewTab.setBackgroundResource(R.drawable.tab_indicator);
            }
        }
    }

    private void setContentText(View view, Context context, @StringRes int content, @StringRes int parameter) {
        ((TextView) view.findViewById(R.id.content))
                .setText(Html.fromHtml(context.getString(content, context.getString(parameter))));
    }

}