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pt 1 in reviving the android build (copied from pm 28a1, wish me luck)

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wuggy 2026-04-08 15:43:25 -07:00
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mobile/android/base/java/org/mozilla/gecko/ActionBarTextSelection.java Normal file
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko;
import org.mozilla.gecko.menu.GeckoMenu;
import org.mozilla.gecko.menu.GeckoMenuItem;
import org.mozilla.gecko.util.ResourceDrawableUtils;
import org.mozilla.gecko.text.TextSelection;
import org.mozilla.gecko.util.GeckoEventListener;
import org.mozilla.gecko.util.ThreadUtils;
import org.mozilla.gecko.ActionModeCompat.Callback;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.view.MenuItem;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.Timer;
import java.util.TimerTask;
import android.util.Log;
class ActionBarTextSelection implements TextSelection, GeckoEventListener {
private static final String LOGTAG = "GeckoTextSelection";
private static final int SHUTDOWN_DELAY_MS = 250;
private final Context context;
private boolean mDraggingHandles;
private String selectionID; // Unique ID provided for each selection action.
private String mCurrentItems;
private TextSelectionActionModeCallback mCallback;
// These timers are used to avoid flicker caused by selection handles showing/hiding quickly.
// For instance when moving between single handle caret mode and two handle selection mode.
private final Timer mActionModeTimer = new Timer("actionMode");
private class ActionModeTimerTask extends TimerTask {
@Override
public void run() {
ThreadUtils.postToUiThread(new Runnable() {
@Override
public void run() {
endActionMode();
}
});
}
};
private ActionModeTimerTask mActionModeTimerTask;
ActionBarTextSelection(Context context) {
this.context = context;
}
@Override
public void create() {
// Only register listeners if we have valid start/middle/end handles
if (context == null) {
Log.e(LOGTAG, "Failed to initialize text selection because at least one context is null");
} else {
GeckoApp.getEventDispatcher().registerGeckoThreadListener(this,
"TextSelection:ActionbarInit",
"TextSelection:ActionbarStatus",
"TextSelection:ActionbarUninit",
"TextSelection:Update");
}
}
@Override
public boolean dismiss() {
// We do not call endActionMode() here because this is already handled by the activity.
return false;
}
@Override
public void destroy() {
if (context == null) {
Log.e(LOGTAG, "Do not unregister TextSelection:* listeners since context is null");
} else {
GeckoApp.getEventDispatcher().unregisterGeckoThreadListener(this,
"TextSelection:ActionbarInit",
"TextSelection:ActionbarStatus",
"TextSelection:ActionbarUninit",
"TextSelection:Update");
}
}
@Override
public void handleMessage(final String event, final JSONObject message) {
ThreadUtils.postToUiThread(new Runnable() {
@Override
public void run() {
try {
if (event.equals("TextSelection:Update")) {
if (mActionModeTimerTask != null)
mActionModeTimerTask.cancel();
showActionMode(message.getJSONArray("actions"));
} else if (event.equals("TextSelection:ActionbarInit")) {
// Init / Open the action bar. Note the current selectionID,
// cancel any pending actionBar close.
Telemetry.sendUIEvent(TelemetryContract.Event.SHOW,
TelemetryContract.Method.CONTENT, "text_selection");
selectionID = message.getString("selectionID");
mCurrentItems = null;
if (mActionModeTimerTask != null) {
mActionModeTimerTask.cancel();
}
} else if (event.equals("TextSelection:ActionbarStatus")) {
// Ensure async updates from SearchService for example are valid.
if (selectionID != message.optString("selectionID")) {
return;
}
// Update the actionBar actions as provided by Gecko.
showActionMode(message.getJSONArray("actions"));
} else if (event.equals("TextSelection:ActionbarUninit")) {
// Uninit the actionbar. Schedule a cancellable close
// action to avoid UI jank. (During SelectionAll for ex).
mCurrentItems = null;
mActionModeTimerTask = new ActionModeTimerTask();
mActionModeTimer.schedule(mActionModeTimerTask, SHUTDOWN_DELAY_MS);
}
} catch (JSONException e) {
Log.e(LOGTAG, "JSON exception", e);
}
}
});
}
private void showActionMode(final JSONArray items) {
String itemsString = items.toString();
if (itemsString.equals(mCurrentItems)) {
return;
}
mCurrentItems = itemsString;
if (mCallback != null) {
mCallback.updateItems(items);
return;
}
if (context instanceof ActionModeCompat.Presenter) {
final ActionModeCompat.Presenter presenter = (ActionModeCompat.Presenter) context;
mCallback = new TextSelectionActionModeCallback(items);
presenter.startActionModeCompat(mCallback);
mCallback.animateIn();
}
}
private void endActionMode() {
if (context instanceof ActionModeCompat.Presenter) {
final ActionModeCompat.Presenter presenter = (ActionModeCompat.Presenter) context;
presenter.endActionModeCompat();
}
mCurrentItems = null;
}
private class TextSelectionActionModeCallback implements Callback {
private JSONArray mItems;
private ActionModeCompat mActionMode;
public TextSelectionActionModeCallback(JSONArray items) {
mItems = items;
}
public void updateItems(JSONArray items) {
mItems = items;
if (mActionMode != null) {
mActionMode.invalidate();
}
}
public void animateIn() {
if (mActionMode != null) {
mActionMode.animateIn();
}
}
@Override
public boolean onPrepareActionMode(final ActionModeCompat mode, final GeckoMenu menu) {
// Android would normally expect us to only update the state of menu items here
// To make the js-java interaction a bit simpler, we just wipe out the menu here and recreate all
// the javascript menu items in onPrepare instead. This will be called any time invalidate() is called on the
// action mode.
menu.clear();
int length = mItems.length();
for (int i = 0; i < length; i++) {
try {
final JSONObject obj = mItems.getJSONObject(i);
final GeckoMenuItem menuitem = (GeckoMenuItem) menu.add(0, i, 0, obj.optString("label"));
final int actionEnum = obj.optBoolean("showAsAction") ? GeckoMenuItem.SHOW_AS_ACTION_ALWAYS : GeckoMenuItem.SHOW_AS_ACTION_NEVER;
menuitem.setShowAsAction(actionEnum, R.attr.menuItemActionModeStyle);
final String iconString = obj.optString("icon");
ResourceDrawableUtils.getDrawable(context, iconString, new ResourceDrawableUtils.BitmapLoader() {
@Override
public void onBitmapFound(Drawable d) {
if (d != null) {
menuitem.setIcon(d);
}
}
});
} catch (Exception ex) {
Log.i(LOGTAG, "Exception building menu", ex);
}
}
return true;
}
@Override
public boolean onCreateActionMode(ActionModeCompat mode, GeckoMenu unused) {
mActionMode = mode;
return true;
}
@Override
public boolean onActionItemClicked(ActionModeCompat mode, MenuItem item) {
try {
final JSONObject obj = mItems.getJSONObject(item.getItemId());
GeckoAppShell.notifyObservers("TextSelection:Action", obj.optString("id"));
return true;
} catch (Exception ex) {
Log.i(LOGTAG, "Exception calling action", ex);
}
return false;
}
// Called when the user exits the action mode
@Override
public void onDestroyActionMode(ActionModeCompat mode) {
mActionMode = null;
mCallback = null;
final JSONObject args = new JSONObject();
try {
args.put("selectionID", selectionID);
} catch (JSONException e) {
Log.e(LOGTAG, "Error building JSON arguments for TextSelection:End", e);
return;
}
GeckoAppShell.notifyObservers("TextSelection:End", args.toString());
}
}
}