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300 lines
10 KiB
Java
300 lines
10 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Android code.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2009-2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Sriram Ramasubramanian <sriram@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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package org.mozilla.gecko;
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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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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.os.SystemClock;
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import android.util.Base64;
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import android.util.Log;
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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 selectedTab;
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private HashMap<Integer, Tab> tabs;
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private ArrayList<Tab> order;
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private ContentResolver resolver;
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private Tabs() {
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tabs = new HashMap<Integer, Tab>();
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order = 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("Tab:ScreenshotData", this);
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}
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public int getCount() {
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return tabs.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 (tabs.containsKey(id))
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return tabs.get(id);
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String url = 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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Tab tab = new Tab(id, url, external, parentId, title);
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tabs.put(id, tab);
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order.add(tab);
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GeckoApp.mAppContext.mMainHandler.post(new Runnable() {
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public void run() {
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GeckoApp.mBrowserToolbar.updateTabs(getCount());
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}
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});
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Log.i(LOGTAG, "Added a tab with id: " + id + ", url: " + url);
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return tab;
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}
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public void removeTab(int id) {
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if (tabs.containsKey(id)) {
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order.remove(getTab(id));
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tabs.remove(id);
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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 (!tabs.containsKey(id))
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return null;
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final Tab tab = tabs.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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if (tab.getURL().equals("about:home"))
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GeckoApp.mAppContext.showAboutHome();
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else
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GeckoApp.mAppContext.hideAboutHome();
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GeckoApp.mAppContext.mMainHandler.post(new Runnable() {
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public void run() {
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GeckoApp.mAutoCompletePopup.hide();
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// Do we need to do this check?
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if (isSelectedTab(tab)) {
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GeckoApp.mBrowserToolbar.setTitle(tab.getDisplayTitle());
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GeckoApp.mBrowserToolbar.setFavicon(tab.getFavicon());
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GeckoApp.mBrowserToolbar.setSecurityMode(tab.getSecurityMode());
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GeckoApp.mBrowserToolbar.setProgressVisibility(tab.isLoading());
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GeckoApp.mDoorHangerPopup.updatePopup();
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GeckoApp.mBrowserToolbar.setShadowVisibility(!(tab.getURL().startsWith("about:")));
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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(new GeckoEvent("Tab:Selected", String.valueOf(tab.getId())));
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return selectedTab = tab;
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}
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public int getIndexOf(Tab tab) {
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return order.lastIndexOf(tab);
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}
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public Tab getTabAt(int index) {
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if (index >= 0 && index < order.size())
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return order.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 selectedTab;
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}
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public boolean isSelectedTab(Tab tab) {
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if (selectedTab == null)
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return false;
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return tab == selectedTab;
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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 (!tabs.containsKey(id))
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return null;
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return tabs.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(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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tab.removeAllDoorHangers();
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final Tab closedTab = tab;
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GeckoApp.mAppContext.mMainHandler.post(new Runnable() {
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public void run() {
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GeckoApp.mAppContext.onTabsChanged(closedTab);
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GeckoApp.mBrowserToolbar.updateTabs(Tabs.getInstance().getCount());
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GeckoApp.mDoorHangerPopup.updatePopup();
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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(new GeckoEvent("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 tabs;
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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 order;
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}
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public void setContentResolver(ContentResolver resolver) {
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this.resolver = resolver;
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}
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public ContentResolver getContentResolver() {
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return resolver;
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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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} 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("Tab:ScreenshotData")) {
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Tab tab = getTab(message.getInt("tabID"));
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byte[] compressed = Base64.decode(message.getString("data").substring(22), Base64.DEFAULT);
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GeckoApp.mAppContext.processThumbnail(tab, null, compressed);
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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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public void refreshThumbnails() {
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GeckoAppShell.getHandler().post(new Runnable() {
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public void run() {
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Iterator<Tab> iterator = tabs.values().iterator();
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while (iterator.hasNext())
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GeckoApp.mAppContext.getAndProcessThumbnailForTab(iterator.next());
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}
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});
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}
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}
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