Major refactoring of ShareActivity. Google Maps now has labeled pins

mobile/src/com/cradle/iitc_mobile/share/IntentGenerator.java

@@ -0,0 +1,143 @@
+package com.cradle.iitc_mobile.share;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ActivityInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.net.Uri;
+
+import com.cradle.iitc_mobile.Log;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+
+public class IntentGenerator {
+    private static final String EXTRA_FLAG_IS_DEFAULT = "IITCM_IS_DEFAULT";
+    private static final String EXTRA_FLAG_TITLE = "IITCM_TITLE";
+    private static final HashSet<ComponentName> KNOWN_COPY_HANDLERS = new HashSet<ComponentName>();
+
+    static {
+        if (KNOWN_COPY_HANDLERS.isEmpty()) {
+
+            KNOWN_COPY_HANDLERS.add(new ComponentName(
+                    "com.google.android.apps.docs",
+                    "com.google.android.apps.docs.app.SendTextToClipboardActivity"));
+
+            KNOWN_COPY_HANDLERS.add(new ComponentName(
+                    "com.aokp.romcontrol",
+                    "com.aokp.romcontrol.ShareToClipboard"));
+        }
+    }
+
+    public static String getTitle(final Intent intent) {
+        if (intent.hasExtra(EXTRA_FLAG_TITLE))
+            return intent.getStringExtra(EXTRA_FLAG_TITLE);
+
+        throw new IllegalArgumentException("Got an intent not generated by IntentGenerator");
+    }
+
+    public static boolean isDefault(final Intent intent) {
+        return intent.hasExtra(EXTRA_FLAG_IS_DEFAULT) && intent.getBooleanExtra(EXTRA_FLAG_IS_DEFAULT, false);
+    }
+
+    private final Context mContext;
+
+    private final PackageManager mPackageManager;
+
+    public IntentGenerator(final Context context) {
+        mContext = context;
+        mPackageManager = mContext.getPackageManager();
+    }
+
+    private boolean containsCopyIntent(final List<Intent> targets) {
+        for (final Intent intent : targets) {
+            for (final ComponentName handler : KNOWN_COPY_HANDLERS) {
+                if (handler.equals(intent.getComponent())) return true;
+            }
+        }
+        return false;
+    }
+
+    private ArrayList<Intent> resolveTargets(final Intent intent) {
+        final String packageName = mContext.getPackageName();
+        final List<ResolveInfo> activityList = mPackageManager.queryIntentActivities(intent, 0);
+        final ResolveInfo defaultTarget = mPackageManager.resolveActivity(intent, 0);
+
+        final ArrayList<Intent> list = new ArrayList<Intent>(activityList.size());
+
+        for (final ResolveInfo resolveInfo : activityList) {
+            final ActivityInfo activity = resolveInfo.activityInfo;
+            final ComponentName component = new ComponentName(activity.packageName, activity.name);
+
+            // remove IITCm from list
+            if (activity.packageName.equals(packageName)) continue;
+
+            final Intent targetIntent = new Intent(intent)
+                    .setComponent(component)
+                    .putExtra(EXTRA_FLAG_TITLE, activity.loadLabel(mPackageManager));
+
+            if (resolveInfo.activityInfo.name.equals(defaultTarget.activityInfo.name) &&
+                    resolveInfo.activityInfo.packageName.equals(defaultTarget.activityInfo.packageName)) {
+                targetIntent.putExtra(EXTRA_FLAG_IS_DEFAULT, true);
+            }
+
+            list.add(targetIntent);
+        }
+
+        return list;
+    }
+
+    public ArrayList<Intent> getBrowserIntents(final String title, final String url) {
+        final Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url))
+                .addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
+
+        return resolveTargets(intent);
+    }
+
+    public ArrayList<Intent> getGeoIntents(final String title, final String mLl, final int mZoom) {
+        final Intent intent = new Intent(android.content.Intent.ACTION_VIEW,
+                Uri.parse(String.format("geo:%s&z=%d", mLl, mZoom)))
+                .addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
+
+        final ArrayList<Intent> targets = resolveTargets(intent);
+
+        // According to https://developer.android.com/guide/components/intents-common.html, markers can be labeled.
+        // Unfortunately, only Google Maps supports this, most other apps fail
+        for (final Intent target : targets) {
+            final ComponentName cn = target.getComponent();
+            if ("com.google.android.apps.maps".equals(cn.getPackageName())) {
+                try {
+                    final String encodedTitle = URLEncoder.encode(title, "UTF-8");
+                    target.setData(Uri.parse(String.format("geo:0,0?q=%s%%20(%s)&z=%d", mLl, encodedTitle, mZoom)));
+                } catch (final UnsupportedEncodingException e) {
+                    Log.w(e);
+                }
+                break;
+            }
+        }
+
+        return targets;
+    }
+
+    public ArrayList<Intent> getShareIntents(final String title, final String text) {
+        final Intent intent = new Intent(Intent.ACTION_SEND)
+                .addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET)
+                .setType("text/plain")
+                .putExtra(Intent.EXTRA_TEXT, text)
+                .putExtra(Intent.EXTRA_SUBJECT, title);
+
+        final ArrayList<Intent> targets = resolveTargets(intent);
+
+        if (!containsCopyIntent(targets)) {
+            // add SendToClipboard intent in case Drive is not installed
+            targets.add(new Intent(intent).setComponent(new ComponentName(mContext, SendToClipboard.class)));
+        }
+
+        return targets;
+    }
+}