AddonManager.java

/*
 * Tint Browser for Android
 * 
 * Copyright (C) 2012 - to infinity and beyond J. Devauchelle and contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 3 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

package com.seal.addons;

import java.util.ArrayList;
import java.util.List;

import org.tint.addons.framework.Action;

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.text.TextUtils;

import com.seal.addons.executors.BaseActionExecutor;
import com.seal.addons.executors.ExecutorFactory;
import com.seal.ui.components.CustomWebView;
import com.seal.ui.managers.UIManager;

public class AddonManager {

	public static final String ACTION_ADDON = "com.mogoweb.intent.action.ADDON";

	private Context mMainContext;
	private UIManager mUIManager;
	private PackageManager mPackageManager;
	private List<Addon> mAddons;

	public AddonManager(Context context, UIManager uiManager) {
		mMainContext = context;
		mUIManager = uiManager;
		mPackageManager = mMainContext.getPackageManager();
		mAddons = new ArrayList<Addon>();
	}

	public List<Addon> getAddons() {
		return mAddons;
	}

	public void bindAddons() {
		mAddons.clear();

		Intent baseIntent = new Intent(ACTION_ADDON);
		List<ResolveInfo> addonInfoList = mPackageManager.queryIntentServices(baseIntent, PackageManager.GET_RESOLVED_FILTER);

		int addonId = 0;

		for (ResolveInfo addonInfo : addonInfoList) {
			String category = addonInfo.filter.categoriesIterator().next();

			Addon addon = new Addon(mMainContext, addonId, addonInfo, category);
			mAddons.add(addon);

			addonId++;
		}
	}

	public void unbindAddons() {
		for (Addon addon : mAddons) {
			addon.unbindService();
		}

		mAddons.clear();
	}

	public void onPageStarted(Context context, CustomWebView webView, String url) {
		List<AddonResponseWrapper> responses = new ArrayList<AddonResponseWrapper>();

		for (Addon addon : mAddons) {
			List<Action> response = addon.onPageStarted(webView.getParentFragment().getUUID().toString(), url);
			if (response != null) {
				responses.add(new AddonResponseWrapper(addon, response));
			}
		}

		processResponses(context, webView, responses);
	}

	public void onPageFinished(Context context, CustomWebView webView, String url) {
		List<AddonResponseWrapper> responses = new ArrayList<AddonResponseWrapper>();

		for (Addon addon : mAddons) {
			List<Action> response = addon.onPageFinished(webView.getParentFragment().getUUID().toString(), url);
			if (response != null) {
				responses.add(new AddonResponseWrapper(addon, response));
			}
		}

		processResponses(context, webView, responses);
	}

	public void onTabOpened(Context context, CustomWebView webView) {
		List<AddonResponseWrapper> responses = new ArrayList<AddonResponseWrapper>();

		for (Addon addon : mAddons) {
			List<Action> response = addon.onTabOpened(webView.getParentFragmentUUID().toString());
			if (response != null) {
				responses.add(new AddonResponseWrapper(addon, response));
			}
		}

		processResponses(context, webView, responses);
	}

	public void onTabClosed(Context context, CustomWebView webView) {
		List<AddonResponseWrapper> responses = new ArrayList<AddonResponseWrapper>();

		for (Addon addon : mAddons) {
			List<Action> response = addon.onTabClosed(webView.getParentFragmentUUID().toString());
			if (response != null) {
				responses.add(new AddonResponseWrapper(addon, response));
			}
		}

		processResponses(context, webView, responses);
	}

	public void onTabSwitched(Context context, CustomWebView webView) {
		List<AddonResponseWrapper> responses = new ArrayList<AddonResponseWrapper>();

		for (Addon addon : mAddons) {
			List<Action> response = addon.onTabSwitched(webView.getParentFragmentUUID().toString());
			if (response != null) {
				responses.add(new AddonResponseWrapper(addon, response));
			}
		}

		processResponses(context, webView, responses);
	}

	public List<AddonMenuItem> getContributedMainMenuItems(CustomWebView currentWebview) {
		List<AddonMenuItem> result = new ArrayList<AddonMenuItem>();

		for (Addon addon : mAddons) {
			String response = addon.getContributedMainMenuItem(currentWebview.getParentFragmentUUID().toString(), currentWebview.getTitle(),
					currentWebview.getUrl());

			if (!TextUtils.isEmpty(response)) {
				result.add(new AddonMenuItem(addon, response));
			}
		}

		return result;
	}

	public boolean onContributedMainMenuItemSelected(Context context, int addonId, CustomWebView currentWebview) {
		addonId = Math.abs(addonId) - 1000;

		if ((addonId >= 0) && (addonId < mAddons.size())) {

			Addon addon = mAddons.get(addonId);

			List<Action> response = addon.onContributedMainMenuItemSelected(currentWebview.getParentFragmentUUID().toString(), currentWebview.getTitle(),
					currentWebview.getUrl());

			processOneResponse(context, currentWebview, addon, response);

			return true;
		} else {
			return false;
		}
	}

	public List<AddonMenuItem> getContributedLinkContextMenuItems(CustomWebView currentWebview, int hitTestResult, String url) {
		List<AddonMenuItem> result = new ArrayList<AddonMenuItem>();

		for (Addon addon : mAddons) {
			String response = addon.getContributedLinkContextMenuItem(currentWebview.getParentFragmentUUID().toString(), hitTestResult, url);

			if (!TextUtils.isEmpty(response)) {
				result.add(new AddonMenuItem(addon, response));
			}
		}

		return result;
	}

	public void onContributedContextLinkMenuItemSelected(Context context, int addonId, int hitTestResult, String url, CustomWebView currentWebview) {
		addonId = Math.abs(addonId) - 1000;

		if ((addonId >= 0) && (addonId < mAddons.size())) {

			Addon addon = mAddons.get(addonId);

			List<Action> response = addon.onContributedLinkContextMenuItemSelected(currentWebview.getParentFragmentUUID().toString(), hitTestResult, url);

			processOneResponse(context, currentWebview, addon, response);
		}
	}

	public List<AddonMenuItem> getContributedHistoryBookmarksMenuItems(CustomWebView currentWebview) {
		List<AddonMenuItem> result = new ArrayList<AddonMenuItem>();

		for (Addon addon : mAddons) {
			String response = addon.getContributedHistoryBookmarksMenuItem(currentWebview.getParentFragmentUUID().toString());

			if (!TextUtils.isEmpty(response)) {
				result.add(new AddonMenuItem(addon, response));
			}
		}

		return result;
	}

	public boolean onContributedHistoryBookmarksMenuItemSelected(Context context, int addonId, CustomWebView currentWebView) {
		addonId = Math.abs(addonId) - 1000;

		if ((addonId >= 0) && (addonId < mAddons.size())) {

			Addon addon = mAddons.get(addonId);

			List<Action> response = addon.onContributedHistoryBookmarksMenuItemSelected(currentWebView.getParentFragmentUUID().toString());
			processOneResponse(context, currentWebView, addon, response);

			return true;
		} else {
			return false;
		}
	}

	public List<AddonMenuItem> getContributedBookmarkContextMenuItems(CustomWebView currentWebview) {
		List<AddonMenuItem> result = new ArrayList<AddonMenuItem>();

		for (Addon addon : mAddons) {
			String response = addon.getContributedBookmarkContextMenuItem(currentWebview.getParentFragmentUUID().toString());

			if (!TextUtils.isEmpty(response)) {
				result.add(new AddonMenuItem(addon, response));
			}
		}

		return result;
	}

	public boolean onContributedBookmarkContextMenuItemSelected(Context context, int addonId, String title, String url, CustomWebView currentWebView) {
		addonId = Math.abs(addonId) - 1000;

		if ((addonId >= 0) && (addonId < mAddons.size())) {

			Addon addon = mAddons.get(addonId);

			List<Action> response = addon.onContributedBookmarkContextMenuItemSelected(currentWebView.getParentFragmentUUID().toString(), title, url);

			processOneResponse(context, currentWebView, addon, response);

			return true;
		} else {
			return false;
		}
	}

	public List<AddonMenuItem> getContributedHistoryContextMenuItems(CustomWebView currentWebview) {
		List<AddonMenuItem> result = new ArrayList<AddonMenuItem>();

		for (Addon addon : mAddons) {
			String response = addon.getContributedHistoryContextMenuItem(currentWebview.getParentFragmentUUID().toString());

			if (!TextUtils.isEmpty(response)) {
				result.add(new AddonMenuItem(addon, response));
			}
		}

		return result;
	}

	public boolean onContributedHistoryContextMenuItemSelected(Context context, int addonId, String title, String url, CustomWebView currentWebView) {
		addonId = Math.abs(addonId) - 1000;

		if ((addonId >= 0) && (addonId < mAddons.size())) {

			Addon addon = mAddons.get(addonId);

			List<Action> response = addon.onContributedHistoryContextMenuItemSelected(currentWebView.getParentFragmentUUID().toString(), title, url);

			processOneResponse(context, currentWebView, addon, response);

			return true;
		} else {
			return false;
		}
	}

	public void onUserConfirm(Context context, CustomWebView currentWebView, Addon addon, int actionId, boolean positiveAnswer) {
		List<Action> response = addon.onUserConfirm(currentWebView.getParentFragmentUUID().toString(), actionId, positiveAnswer);

		processOneResponse(context, currentWebView, addon, response);
	}

	public void onUserInput(Context context, CustomWebView currentWebView, Addon addon, int actionId, boolean cancelled, String userInput) {
		List<Action> response = addon.onUserInput(currentWebView.getParentFragmentUUID().toString(), actionId, cancelled, userInput);

		processOneResponse(context, currentWebView, addon, response);
	}

	public void onUserChoice(Context context, CustomWebView currentWebView, Addon addon, int actionId, boolean cancelled, int userChoice) {
		List<Action> response = addon.onUserChoice(currentWebView.getParentFragmentUUID().toString(), actionId, cancelled, userChoice);

		processOneResponse(context, currentWebView, addon, response);
	}

	private void processOneAction(final Context context, final CustomWebView webView, final Addon addon, final Action addonAction) {
		BaseActionExecutor executor = ExecutorFactory.getExecutor(addonAction);

		if (executor != null) {
			executor.execute(context, mUIManager, webView, addon, addonAction);
		}
	}

	private void processOneResponse(Context context, CustomWebView webView, Addon addon, List<Action> response) {
		if (response != null) {
			for (Action action : response) {
				processOneAction(context, webView, addon, action);
			}
		}
	}

	private void processOneResponse(Context context, CustomWebView webView, AddonResponseWrapper responseWrapper) {
		if (responseWrapper != null) {
			Addon addon = responseWrapper.getAddon();
			List<Action> response = responseWrapper.getResponse();

			processOneResponse(context, webView, addon, response);
		}
	}

	private void processResponses(Context context, CustomWebView webView, List<AddonResponseWrapper> responses) {
		if (responses != null) {
			for (AddonResponseWrapper response : responses) {
				processOneResponse(context, webView, response);
			}
		}
	}

}