PR for #149 location opens map (no.2)

opentasks/src/main/java/org/dmfs/tasks/model/DefaultModel.java

@@ -34,6 +34,7 @@ public class DefaultModel extends Model
 {
 	final static LayoutDescriptor TEXT_VIEW = new LayoutDescriptor(R.layout.text_field_view).setOption(LayoutDescriptor.OPTION_LINKIFY, Linkify.ALL);
 	final static LayoutDescriptor TEXT_VIEW_NO_LINKS = new LayoutDescriptor(R.layout.text_field_view).setOption(LayoutDescriptor.OPTION_LINKIFY, 0);
+	private final static LayoutDescriptor LOCATION_VIEW = new LayoutDescriptor(R.layout.opentasks_location_field_view).setOption(LayoutDescriptor.OPTION_LINKIFY, 0);
 	private final static LayoutDescriptor TEXT_EDIT = new LayoutDescriptor(R.layout.text_field_editor);
 	private final static LayoutDescriptor TEXT_EDIT_SINGLE_LINE = new LayoutDescriptor(R.layout.text_field_editor).setOption(LayoutDescriptor.OPTION_MULTILINE,
 		false);
@@ -101,7 +102,7 @@ public void inflate()
 			.setEditorLayout(CHOICES_EDIT).setChoices(aca).setIcon(R.drawable.ic_detail_status));
 
 		// location
-		addField(new FieldDescriptor(context, R.id.task_field_location, R.string.task_location, TaskFieldAdapters.LOCATION).setViewLayout(TEXT_VIEW)
+		addField(new FieldDescriptor(context, R.id.task_field_location, R.string.task_location, TaskFieldAdapters.LOCATION).setViewLayout(LOCATION_VIEW)
 			.setEditorLayout(TEXT_EDIT).setIcon(R.drawable.ic_detail_location));
 
 		// description

opentasks/src/main/java/org/dmfs/tasks/model/XmlModel.java

@@ -504,7 +504,7 @@ public FieldInflater addEditLayoutOption(String key, int value)
 		FIELD_INFLATER_MAP.put("title", new FieldInflater(TaskFieldAdapters.TITLE, R.id.task_field_title, R.string.task_title, -1, R.layout.text_field_editor,
 			R.drawable.ic_detail_description).addEditLayoutOption(LayoutDescriptor.OPTION_MULTILINE, false));
 		FIELD_INFLATER_MAP.put("location", new FieldInflater(TaskFieldAdapters.LOCATION, R.id.task_field_location, R.string.task_location,
-			R.layout.text_field_view, R.layout.text_field_editor, R.drawable.ic_detail_location).addDetailsLayoutOption(LayoutDescriptor.OPTION_LINKIFY, 0));
+			R.layout.opentasks_location_field_view, R.layout.text_field_editor, R.drawable.ic_detail_location).addDetailsLayoutOption(LayoutDescriptor.OPTION_LINKIFY, 0));
 		FIELD_INFLATER_MAP.put("description", new FieldInflater(TaskFieldAdapters.DESCRIPTION, R.id.task_field_description, R.string.task_description,
 			R.layout.text_field_view, R.layout.text_field_editor, R.drawable.ic_detail_description));
 		FIELD_INFLATER_MAP.put("checklist", new FieldInflater(TaskFieldAdapters.CHECKLIST, R.id.task_field_checklist, R.string.task_checklist,

opentasks/src/main/java/org/dmfs/tasks/widget/LocationFieldView.java

@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2013 Marten Gajda <marten@dmfs.org>
+ *
+ * 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 org.dmfs.tasks.widget;
+
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.TextView;
+import org.dmfs.tasks.R;
+import org.dmfs.tasks.model.ContentSet;
+import org.dmfs.tasks.model.FieldDescriptor;
+import org.dmfs.tasks.model.adapters.FieldAdapter;
+import org.dmfs.tasks.model.layout.LayoutOptions;
+
+
+/**
+ * A widget that shows the location. When clicked, it opens maps.
+ *
+ * @author Gabor Keszthelyi
+ */
+public class LocationFieldView extends AbstractFieldView implements View.OnClickListener
+{
+    /**
+     * The {@link FieldAdapter} of the field for this view.
+     */
+    private FieldAdapter<?> mAdapter;
+
+    /**
+     * The {@link TextView} to show the text in.
+     */
+    private TextView mTextView;
+
+    private String mText;
+
+
+    public LocationFieldView(Context context)
+    {
+        super(context);
+    }
+
+
+    public LocationFieldView(Context context, AttributeSet attrs)
+    {
+        super(context, attrs);
+    }
+
+
+    public LocationFieldView(Context context, AttributeSet attrs, int defStyle)
+    {
+        super(context, attrs, defStyle);
+    }
+
+
+    @Override
+    protected void onFinishInflate()
+    {
+        super.onFinishInflate();
+        mTextView = (TextView) findViewById(R.id.text);
+        setOnClickListener(this);
+    }
+
+
+    @Override
+    public void setFieldDescription(FieldDescriptor descriptor, LayoutOptions layoutOptions)
+    {
+        super.setFieldDescription(descriptor, layoutOptions);
+        mAdapter = descriptor.getFieldAdapter();
+    }
+
+
+    @Override
+    public void onContentChanged(ContentSet contentSet)
+    {
+        if (mValues != null)
+        {
+            Object adapterValue = mAdapter.get(mValues);
+            String adapterStringValue = adapterValue != null ? adapterValue.toString() : null;
+
+            if (!TextUtils.isEmpty(adapterStringValue))
+            {
+                mText = adapterStringValue;
+                mTextView.setText(adapterStringValue);
+                setVisibility(View.VISIBLE);
+            }
+            else
+            {
+                // don't show empty values
+                setVisibility(View.GONE);
+            }
+        }
+    }
+
+
+    @Override
+    public void onClick(View v)
+    {
+        openMapWithLocation(mText);
+    }
+
+
+    private void openMapWithLocation(String locationQuery)
+    {
+        boolean resolved = tryOpeningMapApplication(locationQuery);
+        if (!resolved)
+        {
+            tryOpenGoogleMapsInBrowser(locationQuery);
+        }
+    }
+
+
+    private boolean tryOpeningMapApplication(String locationQuery)
+    {
+        Uri mapAppUri = Uri.parse("geo:0,0?q=" + Uri.encode(locationQuery));
+        Intent mapAppIntent = new Intent(Intent.ACTION_VIEW, mapAppUri);
+        if (mapAppIntent.resolveActivity(getContext().getPackageManager()) != null)
+        {
+            getContext().startActivity(mapAppIntent);
+            return true;
+        }
+        return false;
+    }
+
+
+    private void tryOpenGoogleMapsInBrowser(String locationQuery)
+    {
+        Uri googleMapInBrowserUri = Uri.parse("http://maps.google.com/?q=" + Uri.encode(locationQuery));
+        Intent browserIntent = new Intent(Intent.ACTION_VIEW, googleMapInBrowserUri);
+        if (browserIntent.resolveActivity(getContext().getPackageManager()) != null)
+        {
+            getContext().startActivity(browserIntent);
+        }
+    }
+}

opentasks/src/main/res/layout/opentasks_location_field_view.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<org.dmfs.tasks.widget.LocationFieldView
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:clickable="true"
+        style="@style/task_widget">
+
+    <!-- TODO Touch feedback could be added later (android:background="?android:attr/selectableItemBackground" requires min API 11)-->
+
+    <TextView
+            android:id="@android:id/icon"
+            style="@style/details_label_icon"
+            android:textIsSelectable="false"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"/>
+
+    <TextView
+            android:id="@+id/text"
+            style="@style/field_view_text_value"
+            android:textIsSelectable="false"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"/>
+
+</org.dmfs.tasks.widget.LocationFieldView>