mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
380 lines
12 KiB
Java
380 lines
12 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.util.GeckoEventListener;
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import org.json.JSONException;
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import org.json.JSONObject;
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import android.content.ContentResolver;
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import android.content.Intent;
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import android.os.SystemClock;
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import android.util.Log;
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import android.widget.Toast;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Iterator;
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public class Tabs implements GeckoEventListener {
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private static final String LOGTAG = "GeckoTabs";
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private Tab mSelectedTab;
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private HashMap<Integer, Tab> mTabs;
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private ArrayList<Tab> mOrder;
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private ContentResolver mResolver;
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private boolean mRestoringSession;
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private GeckoApp mActivity;
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private Tabs() {
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mTabs = new HashMap<Integer, Tab>();
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mOrder = new ArrayList<Tab>();
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GeckoAppShell.registerGeckoEventListener("SessionHistory:New", this);
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GeckoAppShell.registerGeckoEventListener("SessionHistory:Back", this);
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GeckoAppShell.registerGeckoEventListener("SessionHistory:Forward", this);
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GeckoAppShell.registerGeckoEventListener("SessionHistory:Goto", this);
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GeckoAppShell.registerGeckoEventListener("SessionHistory:Purge", this);
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GeckoAppShell.registerGeckoEventListener("Tab:Added", this);
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GeckoAppShell.registerGeckoEventListener("Tab:Close", this);
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GeckoAppShell.registerGeckoEventListener("Tab:Select", this);
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GeckoAppShell.registerGeckoEventListener("Session:RestoreBegin", this);
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GeckoAppShell.registerGeckoEventListener("Session:RestoreEnd", this);
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GeckoAppShell.registerGeckoEventListener("Reader:Added", this);
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GeckoAppShell.registerGeckoEventListener("Reader:Removed", this);
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GeckoAppShell.registerGeckoEventListener("Reader:Share", this);
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}
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public void attachToActivity(GeckoApp activity) {
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mActivity = activity;
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}
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public int getCount() {
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return mTabs.size();
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}
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public Tab addTab(JSONObject params) throws JSONException {
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int id = params.getInt("tabID");
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if (mTabs.containsKey(id))
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return mTabs.get(id);
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// null strings return "null" (http://code.google.com/p/android/issues/detail?id=13830)
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String url = params.isNull("uri") ? null : params.getString("uri");
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Boolean external = params.getBoolean("external");
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int parentId = params.getInt("parentId");
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String title = params.getString("title");
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final Tab tab = new Tab(id, url, external, parentId, title);
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mTabs.put(id, tab);
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mOrder.add(tab);
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if (!mRestoringSession) {
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mActivity.runOnUiThread(new Runnable() {
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public void run() {
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notifyListeners(tab, TabEvents.ADDED);
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}
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});
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}
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Log.i(LOGTAG, "Added a tab with id: " + id);
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return tab;
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}
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public void removeTab(int id) {
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if (mTabs.containsKey(id)) {
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Tab tab = getTab(id);
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mOrder.remove(tab);
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mTabs.remove(id);
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tab.freeBuffer();
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Log.i(LOGTAG, "Removed a tab with id: " + id);
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}
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}
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public Tab selectTab(int id) {
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if (!mTabs.containsKey(id))
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return null;
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final Tab oldTab = getSelectedTab();
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final Tab tab = mTabs.get(id);
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// This avoids a NPE below, but callers need to be careful to
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// handle this case
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if (tab == null)
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return null;
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mSelectedTab = tab;
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mActivity.runOnUiThread(new Runnable() {
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public void run() {
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mActivity.hideFormAssistPopup();
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if (isSelectedTab(tab)) {
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String url = tab.getURL();
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notifyListeners(tab, TabEvents.SELECTED);
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if (oldTab != null)
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notifyListeners(oldTab, TabEvents.UNSELECTED);
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}
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}
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});
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// Pass a message to Gecko to update tab state in BrowserApp
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GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Tab:Selected", String.valueOf(tab.getId())));
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return tab;
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}
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public int getIndexOf(Tab tab) {
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return mOrder.lastIndexOf(tab);
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}
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public Tab getTabAt(int index) {
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if (index >= 0 && index < mOrder.size())
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return mOrder.get(index);
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else
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return null;
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}
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public Tab getSelectedTab() {
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return mSelectedTab;
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}
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public boolean isSelectedTab(Tab tab) {
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if (mSelectedTab == null)
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return false;
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return tab == mSelectedTab;
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}
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public Tab getTab(int id) {
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if (getCount() == 0)
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return null;
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if (!mTabs.containsKey(id))
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return null;
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return mTabs.get(id);
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}
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/** Close tab and then select the default next tab */
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public void closeTab(Tab tab) {
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closeTab(tab, getNextTab(tab));
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}
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/** Close tab and then select nextTab */
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public void closeTab(final Tab tab, Tab nextTab) {
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if (tab == null || nextTab == null)
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return;
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selectTab(nextTab.getId());
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int tabId = tab.getId();
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removeTab(tabId);
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mActivity.runOnUiThread(new Runnable() {
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public void run() {
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notifyListeners(tab, TabEvents.CLOSED);
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tab.onDestroy();
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}
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});
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// Pass a message to Gecko to update tab state in BrowserApp
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GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Tab:Closed", String.valueOf(tabId)));
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}
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/** Return the tab that will be selected by default after this one is closed */
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public Tab getNextTab(Tab tab) {
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Tab selectedTab = getSelectedTab();
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if (selectedTab != tab)
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return selectedTab;
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int index = getIndexOf(tab);
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Tab nextTab = getTabAt(index + 1);
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if (nextTab == null)
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nextTab = getTabAt(index - 1);
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Tab parent = getTab(tab.getParentId());
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if (parent != null) {
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// If the next tab is a sibling, switch to it. Otherwise go back to the parent.
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if (nextTab != null && nextTab.getParentId() == tab.getParentId())
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return nextTab;
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else
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return parent;
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}
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return nextTab;
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}
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public HashMap<Integer, Tab> getTabs() {
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if (getCount() == 0)
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return null;
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return mTabs;
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}
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public ArrayList<Tab> getTabsInOrder() {
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if (getCount() == 0)
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return null;
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return mOrder;
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}
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public void setContentResolver(ContentResolver resolver) {
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mResolver = resolver;
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}
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public ContentResolver getContentResolver() {
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return mResolver;
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}
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//Making Tabs a singleton class
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private static class TabsInstanceHolder {
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private static final Tabs INSTANCE = new Tabs();
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}
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public static Tabs getInstance() {
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return Tabs.TabsInstanceHolder.INSTANCE;
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}
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// GeckoEventListener implementation
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public void handleMessage(String event, JSONObject message) {
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Log.i(LOGTAG, "Got message: " + event);
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try {
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if (event.startsWith("SessionHistory:")) {
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Tab tab = getTab(message.getInt("tabID"));
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if (tab != null) {
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event = event.substring("SessionHistory:".length());
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tab.handleSessionHistoryMessage(event, message);
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}
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} else if (event.equals("Tab:Added")) {
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Log.i(LOGTAG, "Received message from Gecko: " + SystemClock.uptimeMillis() + " - Tab:Added");
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Tab tab = addTab(message);
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if (message.getBoolean("selected"))
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selectTab(tab.getId());
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if (message.getBoolean("delayLoad"))
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tab.setState(Tab.STATE_DELAYED);
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if (message.getBoolean("desktopMode"))
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tab.setDesktopMode(true);
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} else if (event.equals("Tab:Close")) {
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Tab tab = getTab(message.getInt("tabID"));
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closeTab(tab);
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} else if (event.equals("Tab:Select")) {
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selectTab(message.getInt("tabID"));
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} else if (event.equals("Session:RestoreBegin")) {
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mRestoringSession = true;
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} else if (event.equals("Session:RestoreEnd")) {
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mRestoringSession = false;
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mActivity.runOnUiThread(new Runnable() {
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public void run() {
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notifyListeners(null, TabEvents.RESTORED);
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}
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});
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} else if (event.equals("Reader:Added")) {
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final boolean success = message.getBoolean("success");
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final String title = message.getString("title");
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final String url = message.getString("url");
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handleReaderAdded(success, title, url);
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} else if (event.equals("Reader:Removed")) {
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final String url = message.getString("url");
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handleReaderRemoved(url);
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} else if (event.equals("Reader:Share")) {
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final String title = message.getString("title");
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final String url = message.getString("url");
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GeckoAppShell.openUriExternal(url, "text/plain", "", "",
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Intent.ACTION_SEND, title);
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}
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} catch (Exception e) {
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Log.i(LOGTAG, "handleMessage throws " + e + " for message: " + event);
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}
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}
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void handleReaderAdded(boolean success, final String title, final String url) {
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if (!success) {
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mActivity.showToast(R.string.reading_list_failed, Toast.LENGTH_SHORT);
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return;
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}
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GeckoAppShell.getHandler().post(new Runnable() {
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public void run() {
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BrowserDB.addReadingListItem(mActivity.getContentResolver(), title, url);
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mActivity.showToast(R.string.reading_list_added, Toast.LENGTH_SHORT);
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}
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});
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}
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void handleReaderRemoved(final String url) {
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GeckoAppShell.getHandler().post(new Runnable() {
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public void run() {
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BrowserDB.removeReadingListItemWithURL(mResolver, url);
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mActivity.showToast(R.string.reading_list_removed, Toast.LENGTH_SHORT);
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}
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});
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}
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public void refreshThumbnails() {
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Iterator<Tab> iterator = mTabs.values().iterator();
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while (iterator.hasNext()) {
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final Tab tab = iterator.next();
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GeckoAppShell.getHandler().post(new Runnable() {
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public void run() {
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mActivity.getAndProcessThumbnailForTab(tab);
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}
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});
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}
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}
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public interface OnTabsChangedListener {
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public void onTabChanged(Tab tab, TabEvents msg, Object data);
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}
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private static ArrayList<OnTabsChangedListener> mTabsChangedListeners;
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public static void registerOnTabsChangedListener(OnTabsChangedListener listener) {
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if (mTabsChangedListeners == null)
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mTabsChangedListeners = new ArrayList<OnTabsChangedListener>();
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mTabsChangedListeners.add(listener);
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}
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public static void unregisterOnTabsChangedListener(OnTabsChangedListener listener) {
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if (mTabsChangedListeners == null)
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return;
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mTabsChangedListeners.remove(listener);
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}
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public enum TabEvents {
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CLOSED,
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START,
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LOADED,
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LOAD_ERROR,
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STOP,
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FAVICON,
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THUMBNAIL,
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TITLE,
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SELECTED,
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UNSELECTED,
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ADDED,
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RESTORED,
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LOCATION_CHANGE,
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MENU_UPDATED
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}
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public void notifyListeners(Tab tab, TabEvents msg) {
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notifyListeners(tab, msg, "");
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}
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public void notifyListeners(Tab tab, TabEvents msg, Object data) {
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if (mTabsChangedListeners == null)
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return;
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Iterator<OnTabsChangedListener> items = mTabsChangedListeners.iterator();
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while (items.hasNext()) {
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items.next().onTabChanged(tab, msg, data);
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}
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}
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}
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