mirror of
https://github.com/mozilla/gecko-dev.git
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577 lines
22 KiB
Java
577 lines
22 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.gecko;
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import org.mozilla.gecko.db.BrowserDB;
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import org.mozilla.gecko.gfx.LayerView;
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import org.mozilla.gecko.mozglue.GeckoLoader;
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import org.mozilla.gecko.util.Clipboard;
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import org.mozilla.gecko.util.HardwareUtils;
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import org.mozilla.gecko.util.GeckoEventListener;
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import org.mozilla.gecko.util.ThreadUtils;
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import org.json.JSONException;
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import org.json.JSONObject;
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import android.app.Activity;
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import android.content.Context;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.content.res.TypedArray;
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import android.os.Handler;
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import android.util.AttributeSet;
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import android.util.Log;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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public class GeckoView extends LayerView
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implements GeckoEventListener, ContextGetter {
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private static final String DEFAULT_SHARED_PREFERENCES_FILE = "GeckoView";
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private static final String LOGTAG = "GeckoView";
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private ChromeDelegate mChromeDelegate;
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private ContentDelegate mContentDelegate;
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public GeckoView(Context context) {
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super(context);
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init(context, null, true);
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}
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public GeckoView(Context context, AttributeSet attrs) {
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super(context, attrs);
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TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.GeckoView);
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String url = a.getString(R.styleable.GeckoView_url);
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boolean doInit = a.getBoolean(R.styleable.GeckoView_doinit, true);
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a.recycle();
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init(context, url, doInit);
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}
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private void init(Context context, String url, boolean doInit) {
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// TODO: Fennec currently takes care of its own initialization, so this
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// flag is a hack used in Fennec to prevent GeckoView initialization.
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// This should go away once Fennec also uses GeckoView for
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// initialization.
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if (!doInit)
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return;
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// If running outside of a GeckoActivity (eg, from a library project),
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// load the native code and disable content providers
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boolean isGeckoActivity = false;
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try {
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isGeckoActivity = context instanceof GeckoActivity;
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} catch (NoClassDefFoundError ex) {}
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if (!isGeckoActivity) {
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// Set the GeckoInterface if the context is an activity and the GeckoInterface
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// has not already been set
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if (context instanceof Activity && getGeckoInterface() == null) {
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setGeckoInterface(new BaseGeckoInterface(context));
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}
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Clipboard.init(context);
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HardwareUtils.init(context);
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GeckoNetworkManager.getInstance().init(context);
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GeckoLoader.loadMozGlue();
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BrowserDB.setEnableContentProviders(false);
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}
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if (url != null) {
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GeckoThread.setUri(url);
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GeckoThread.setAction(Intent.ACTION_VIEW);
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GeckoAppShell.sendEventToGecko(GeckoEvent.createURILoadEvent(url));
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}
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GeckoAppShell.setContextGetter(this);
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if (context instanceof Activity) {
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Tabs tabs = Tabs.getInstance();
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tabs.attachToContext(context);
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}
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GeckoAppShell.registerEventListener("Gecko:Ready", this);
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GeckoAppShell.registerEventListener("Content:StateChange", this);
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GeckoAppShell.registerEventListener("Content:LoadError", this);
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GeckoAppShell.registerEventListener("Content:PageShow", this);
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GeckoAppShell.registerEventListener("DOMTitleChanged", this);
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GeckoAppShell.registerEventListener("Link:Favicon", this);
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GeckoAppShell.registerEventListener("Prompt:Show", this);
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GeckoAppShell.registerEventListener("Prompt:ShowTop", this);
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ThreadUtils.setUiThread(Thread.currentThread(), new Handler());
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initializeView(GeckoAppShell.getEventDispatcher());
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if (GeckoThread.checkAndSetLaunchState(GeckoThread.LaunchState.Launching, GeckoThread.LaunchState.Launched)) {
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// This is the first launch, so finish initialization and go.
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GeckoProfile profile = GeckoProfile.get(context).forceCreate();
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BrowserDB.initialize(profile.getName());
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GeckoAppShell.setLayerView(this);
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GeckoThread.createAndStart();
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} else if(GeckoThread.checkLaunchState(GeckoThread.LaunchState.GeckoRunning)) {
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// If Gecko is already running, that means the Activity was
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// destroyed, so we need to re-attach Gecko to this GeckoView.
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connectToGecko();
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}
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}
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/**
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* Add a Browser to the GeckoView container.
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* @param url The URL resource to load into the new Browser.
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*/
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public Browser addBrowser(String url) {
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Tab tab = Tabs.getInstance().loadUrl(url, Tabs.LOADURL_NEW_TAB);
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if (tab != null) {
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return new Browser(tab.getId());
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}
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return null;
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}
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/**
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* Remove a Browser from the GeckoView container.
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* @param browser The Browser to remove.
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*/
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public void removeBrowser(Browser browser) {
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Tab tab = Tabs.getInstance().getTab(browser.getId());
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if (tab != null) {
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Tabs.getInstance().closeTab(tab);
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}
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}
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/**
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* Set the active/visible Browser.
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* @param browser The Browser to make selected.
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*/
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public void setCurrentBrowser(Browser browser) {
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Tab tab = Tabs.getInstance().getTab(browser.getId());
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if (tab != null) {
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Tabs.getInstance().selectTab(tab.getId());
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}
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}
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/**
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* Get the active/visible Browser.
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* @return The current selected Browser.
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*/
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public Browser getCurrentBrowser() {
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Tab tab = Tabs.getInstance().getSelectedTab();
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if (tab != null) {
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return new Browser(tab.getId());
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}
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return null;
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}
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/**
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* Get the list of current Browsers in the GeckoView container.
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* @return An unmodifiable List of Browser objects.
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*/
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public List<Browser> getBrowsers() {
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ArrayList<Browser> browsers = new ArrayList<Browser>();
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Iterable<Tab> tabs = Tabs.getInstance().getTabsInOrder();
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for (Tab tab : tabs) {
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browsers.add(new Browser(tab.getId()));
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}
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return Collections.unmodifiableList(browsers);
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}
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/**
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* Not part of the public API. Ignore.
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*/
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public void handleMessage(final String event, final JSONObject message) {
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ThreadUtils.postToUiThread(new Runnable() {
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@Override
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public void run() {
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try {
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if (event.equals("Gecko:Ready")) {
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GeckoView.this.handleReady(message);
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} else if (event.equals("Content:StateChange")) {
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GeckoView.this.handleStateChange(message);
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} else if (event.equals("Content:LoadError")) {
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GeckoView.this.handleLoadError(message);
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} else if (event.equals("Content:PageShow")) {
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GeckoView.this.handlePageShow(message);
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} else if (event.equals("DOMTitleChanged")) {
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GeckoView.this.handleTitleChanged(message);
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} else if (event.equals("Link:Favicon")) {
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GeckoView.this.handleLinkFavicon(message);
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} else if (event.equals("Prompt:Show") || event.equals("Prompt:ShowTop")) {
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GeckoView.this.handlePrompt(message);
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}
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} catch (Exception e) {
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Log.w(LOGTAG, "handleMessage threw for " + event, e);
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}
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}
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});
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}
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private void connectToGecko() {
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GeckoThread.setLaunchState(GeckoThread.LaunchState.GeckoRunning);
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Tab selectedTab = Tabs.getInstance().getSelectedTab();
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if (selectedTab != null)
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Tabs.getInstance().notifyListeners(selectedTab, Tabs.TabEvents.SELECTED);
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geckoConnected();
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GeckoAppShell.setLayerClient(getLayerClient());
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GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Viewport:Flush", null));
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}
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private void handleReady(final JSONObject message) {
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connectToGecko();
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if (mChromeDelegate != null) {
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mChromeDelegate.onReady(this);
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}
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}
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private void handleStateChange(final JSONObject message) throws JSONException {
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int state = message.getInt("state");
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if ((state & GeckoAppShell.WPL_STATE_IS_NETWORK) != 0) {
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if ((state & GeckoAppShell.WPL_STATE_START) != 0) {
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if (mContentDelegate != null) {
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int id = message.getInt("tabID");
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mContentDelegate.onPageStart(this, new Browser(id), message.getString("uri"));
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}
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} else if ((state & GeckoAppShell.WPL_STATE_STOP) != 0) {
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if (mContentDelegate != null) {
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int id = message.getInt("tabID");
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mContentDelegate.onPageStop(this, new Browser(id), message.getBoolean("success"));
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}
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}
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}
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}
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private void handleLoadError(final JSONObject message) throws JSONException {
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if (mContentDelegate != null) {
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int id = message.getInt("tabID");
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mContentDelegate.onPageStop(GeckoView.this, new Browser(id), false);
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}
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}
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private void handlePageShow(final JSONObject message) throws JSONException {
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if (mContentDelegate != null) {
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int id = message.getInt("tabID");
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mContentDelegate.onPageShow(GeckoView.this, new Browser(id));
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}
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}
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private void handleTitleChanged(final JSONObject message) throws JSONException {
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if (mContentDelegate != null) {
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int id = message.getInt("tabID");
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mContentDelegate.onReceivedTitle(GeckoView.this, new Browser(id), message.getString("title"));
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}
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}
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private void handleLinkFavicon(final JSONObject message) throws JSONException {
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if (mContentDelegate != null) {
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int id = message.getInt("tabID");
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mContentDelegate.onReceivedFavicon(GeckoView.this, new Browser(id), message.getString("href"), message.getInt("size"));
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}
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}
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private void handlePrompt(final JSONObject message) throws JSONException {
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if (mChromeDelegate != null) {
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String hint = message.optString("hint");
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if ("alert".equals(hint)) {
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String text = message.optString("text");
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mChromeDelegate.onAlert(GeckoView.this, null, text, new PromptResult(message.optString("guid")));
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} else if ("confirm".equals(hint)) {
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String text = message.optString("text");
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mChromeDelegate.onConfirm(GeckoView.this, null, text, new PromptResult(message.optString("guid")));
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} else if ("prompt".equals(hint)) {
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String text = message.optString("text");
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String defaultValue = message.optString("textbox0");
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mChromeDelegate.onPrompt(GeckoView.this, null, text, defaultValue, new PromptResult(message.optString("guid")));
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} else if ("remotedebug".equals(hint)) {
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mChromeDelegate.onDebugRequest(GeckoView.this, new PromptResult(message.optString("guid")));
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}
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}
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}
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/**
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* Set the chrome callback handler.
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* This will replace the current handler.
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* @param chrome An implementation of GeckoViewChrome.
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*/
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public void setChromeDelegate(ChromeDelegate chrome) {
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mChromeDelegate = chrome;
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}
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/**
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* Set the content callback handler.
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* This will replace the current handler.
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* @param content An implementation of ContentDelegate.
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*/
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public void setContentDelegate(ContentDelegate content) {
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mContentDelegate = content;
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}
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public static void setGeckoInterface(final BaseGeckoInterface geckoInterface) {
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GeckoAppShell.setGeckoInterface(geckoInterface);
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}
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public static GeckoAppShell.GeckoInterface getGeckoInterface() {
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return GeckoAppShell.getGeckoInterface();
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}
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protected String getSharedPreferencesFile() {
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return DEFAULT_SHARED_PREFERENCES_FILE;
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}
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public SharedPreferences getSharedPreferences() {
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return getContext().getSharedPreferences(getSharedPreferencesFile(), 0);
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}
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/**
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* Wrapper for a browser in the GeckoView container. Associated with a browser
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* element in the Gecko system.
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*/
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public class Browser {
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private final int mId;
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private Browser(int Id) {
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mId = Id;
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}
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/**
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* Get the ID of the Browser. This is the same ID used by Gecko for it's underlying
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* browser element.
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* @return The integer ID of the Browser.
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*/
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private int getId() {
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return mId;
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}
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/**
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* Load a URL resource into the Browser.
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* @param url The URL string.
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*/
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public void loadUrl(String url) {
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JSONObject args = new JSONObject();
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try {
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args.put("url", url);
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args.put("parentId", -1);
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args.put("newTab", false);
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args.put("tabID", mId);
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} catch (Exception e) {
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Log.w(LOGTAG, "Error building JSON arguments for loadUrl.", e);
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}
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GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Tab:Load", args.toString()));
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}
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/**
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* Reload the current URL resource into the Browser. The URL is force loaded from the
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* network and is not pulled from cache.
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*/
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public void reload() {
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Tab tab = Tabs.getInstance().getTab(mId);
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if (tab != null) {
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tab.doReload();
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}
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}
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/**
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* Stop the current loading operation.
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*/
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public void stop() {
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Tab tab = Tabs.getInstance().getTab(mId);
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if (tab != null) {
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tab.doStop();
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}
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}
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/**
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* Check to see if the Browser has session history and can go back to a
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* previous page.
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* @return A boolean flag indicating if previous session exists.
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* This method will likely be removed and replaced by a callback in GeckoViewContent
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*/
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public boolean canGoBack() {
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Tab tab = Tabs.getInstance().getTab(mId);
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if (tab != null) {
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return tab.canDoBack();
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}
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return false;
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}
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/**
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* Move backward in the session history, if that's possible.
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*/
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public void goBack() {
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Tab tab = Tabs.getInstance().getTab(mId);
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if (tab != null) {
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tab.doBack();
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}
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}
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/**
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* Check to see if the Browser has session history and can go forward to a
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* new page.
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* @return A boolean flag indicating if forward session exists.
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* This method will likely be removed and replaced by a callback in GeckoViewContent
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*/
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public boolean canGoForward() {
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Tab tab = Tabs.getInstance().getTab(mId);
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if (tab != null) {
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return tab.canDoForward();
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}
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return false;
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}
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/**
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* Move forward in the session history, if that's possible.
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*/
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public void goForward() {
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Tab tab = Tabs.getInstance().getTab(mId);
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if (tab != null) {
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tab.doForward();
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}
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}
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}
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/* Provides a means for the client to indicate whether a JavaScript
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* dialog request should proceed. An instance of this class is passed to
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* various GeckoViewChrome callback actions.
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*/
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public class PromptResult {
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private final int RESULT_OK = 0;
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private final int RESULT_CANCEL = 1;
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private final String mGUID;
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public PromptResult(String guid) {
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mGUID = guid;
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}
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private JSONObject makeResult(int resultCode) {
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JSONObject result = new JSONObject();
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try {
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result.put("guid", mGUID);
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result.put("button", resultCode);
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} catch(JSONException ex) { }
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return result;
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}
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/**
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* Handle a confirmation response from the user.
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*/
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public void confirm() {
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JSONObject result = makeResult(RESULT_OK);
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GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Prompt:Reply", result.toString()));
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}
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/**
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* Handle a confirmation response from the user.
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* @param value String value to return to the browser context.
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*/
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public void confirmWithValue(String value) {
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JSONObject result = makeResult(RESULT_OK);
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try {
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result.put("textbox0", value);
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} catch(JSONException ex) { }
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GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Prompt:Reply", result.toString()));
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}
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/**
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* Handle a cancellation response from the user.
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*/
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public void cancel() {
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JSONObject result = makeResult(RESULT_CANCEL);
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GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Prompt:Reply", result.toString()));
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}
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}
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public interface ChromeDelegate {
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/**
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* Tell the host application that Gecko is ready to handle requests.
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* @param view The GeckoView that initiated the callback.
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*/
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public void onReady(GeckoView view);
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/**
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* Tell the host application to display an alert dialog.
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* @param view The GeckoView that initiated the callback.
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* @param browser The Browser that is loading the content.
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* @param message The string to display in the dialog.
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* @param result A PromptResult used to send back the result without blocking.
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* Defaults to cancel requests.
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*/
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public void onAlert(GeckoView view, GeckoView.Browser browser, String message, GeckoView.PromptResult result);
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/**
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* Tell the host application to display a confirmation dialog.
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* @param view The GeckoView that initiated the callback.
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* @param browser The Browser that is loading the content.
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* @param message The string to display in the dialog.
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* @param result A PromptResult used to send back the result without blocking.
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* Defaults to cancel requests.
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*/
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public void onConfirm(GeckoView view, GeckoView.Browser browser, String message, GeckoView.PromptResult result);
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/**
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* Tell the host application to display an input prompt dialog.
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* @param view The GeckoView that initiated the callback.
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* @param browser The Browser that is loading the content.
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* @param message The string to display in the dialog.
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* @param defaultValue The string to use as default input.
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* @param result A PromptResult used to send back the result without blocking.
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* Defaults to cancel requests.
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*/
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public void onPrompt(GeckoView view, GeckoView.Browser browser, String message, String defaultValue, GeckoView.PromptResult result);
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|
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/**
|
|
* Tell the host application to display a remote debugging request dialog.
|
|
* @param view The GeckoView that initiated the callback.
|
|
* @param result A PromptResult used to send back the result without blocking.
|
|
* Defaults to cancel requests.
|
|
*/
|
|
public void onDebugRequest(GeckoView view, GeckoView.PromptResult result);
|
|
}
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|
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public interface ContentDelegate {
|
|
/**
|
|
* A Browser has started loading content from the network.
|
|
* @param view The GeckoView that initiated the callback.
|
|
* @param browser The Browser that is loading the content.
|
|
* @param url The resource being loaded.
|
|
*/
|
|
public void onPageStart(GeckoView view, GeckoView.Browser browser, String url);
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|
|
|
/**
|
|
* A Browser has finished loading content from the network.
|
|
* @param view The GeckoView that initiated the callback.
|
|
* @param browser The Browser that was loading the content.
|
|
* @param success Whether the page loaded successfully or an error occured.
|
|
*/
|
|
public void onPageStop(GeckoView view, GeckoView.Browser browser, boolean success);
|
|
|
|
/**
|
|
* A Browser is displaying content. This page could have been loaded via
|
|
* network or from the session history.
|
|
* @param view The GeckoView that initiated the callback.
|
|
* @param browser The Browser that is showing the content.
|
|
*/
|
|
public void onPageShow(GeckoView view, GeckoView.Browser browser);
|
|
|
|
/**
|
|
* A page title was discovered in the content or updated after the content
|
|
* loaded.
|
|
* @param view The GeckoView that initiated the callback.
|
|
* @param browser The Browser that is showing the content.
|
|
* @param title The title sent from the content.
|
|
*/
|
|
public void onReceivedTitle(GeckoView view, GeckoView.Browser browser, String title);
|
|
|
|
/**
|
|
* A link element was discovered in the content or updated after the content
|
|
* loaded that specifies a favicon.
|
|
* @param view The GeckoView that initiated the callback.
|
|
* @param browser The Browser that is showing the content.
|
|
* @param url The href of the link element specifying the favicon.
|
|
* @param size The maximum size specified for the favicon, or -1 for any size.
|
|
*/
|
|
public void onReceivedFavicon(GeckoView view, GeckoView.Browser browser, String url, int size);
|
|
}
|
|
|
|
}
|