mainwindow.java

这是一个基于java编写的torrent的P2P源码

		text.addMouseListener(new MouseListener() {

			public void mouseUp(MouseEvent e) {
			}

			public void mouseDown(MouseEvent e) {
				Text text = (Text) e.widget;
				if (text.getText().equals(sDefault)) {
					text.setForeground(ColorCache.getColor(text.getDisplay(), 0, 0, 0));
					text.setText("");
				}
			}

			public void mouseDoubleClick(MouseEvent e) {
			}
		});

		text.addSelectionListener(new SelectionListener() {

			public void widgetSelected(SelectionEvent e) {
				// TODO Auto-generated method stub

			}

			public void widgetDefaultSelected(SelectionEvent e) {
				// Open a new search result view

				// Search Results are placed in a Search Results tab in the 
				// "Browse Content" tab view. 

				Text text = (Text) e.widget;
				String sSearchText = text.getText();

				doSearch(sSearchText);

			}

		});

		SWTSkinObject searchGo = skin.getSkinObject("search-go");
		if (searchGo != null) {
			SWTSkinButtonUtility btnGo = new SWTSkinButtonUtility(searchGo);
			btnGo.addSelectionListener(new ButtonListenerAdapter() {
				public void pressed(SWTSkinButtonUtility buttonUtility) {
					String sSearchText = text.getText().trim();
					if (!sSearchText.equals(sDefault) && sSearchText.length() > 0) {
						doSearch(sSearchText);
					}
				}
			});
		}
	}

	/**
	 * @param searchText
	 */
	protected void doSearch(String sSearchText) {
		// Switch to browse tab
		skin.setActiveTab("maintabs", "maintabs.browse");

		SWTSkinObject skinObject = skin.getSkinObject("browse");
		if (skinObject == null) {
			return;
		}

		String sURL = Constants.URL_PREFIX + Constants.URL_ADD_SEARCH
				+ UrlUtils.encode(sSearchText) + "&" + Constants.URL_SUFFIX;
		//		String sURL = Constants.URL_PREFIX
		//				+ "app?page=content%2FBrowse&service=external&sp=X&sp=X&sp=S"
		//				+ UrlUtils.encode(" " + sSearchText + " ") + "&sp=X&sp=X&"
		//				+ Constants.URL_SUFFIX;
		System.out.println(sURL);

		if (skinObject instanceof SWTSkinObjectBrowser) {
			((SWTSkinObjectBrowser) skinObject).setURL(sURL);
			return;
		}

		// below is the old impementation of search, which creates a new tab
		// and browser for each search.

		// Get Search Results tab (which contains a tabset of searched terms),
		// create if needed
		skinObject = skin.getSkinObject("browse-tabs");
		if (skinObject == null) {
			System.err.println("no browse-tabs");
			return;
		}

		SWTSkinTabSet tabSetSearch = skin.getTabSet(SWTSkinTabSet.getTabSetID(skin,
				skinObject, "search-tab"));

		SWTSkinObjectTab searchTab = null;
		if (tabSetSearch != null) {
			SWTSkinObjectTab[] tabs = tabSetSearch.getTabs();
			if (tabs.length > 0) {
				searchTab = tabs[tabs.length - 1];
			}
		}

		String sTabID = "internal.tab.searchresults";
		if (searchTab == null || !searchTab.getSkinObjectID().equals(sTabID)) {
			// Create search results tab
			searchTab = skin.createTab(sTabID, "search-tab", skinObject);

			// Attach the new tab to the previous one
			Control currentControl = searchTab.getControl();
			FormData formData = (FormData) currentControl.getLayoutData();
			if (formData == null) {
				formData = new FormData();
			}
			formData.right = new FormAttachment(100, 0);
			currentControl.setLayoutData(formData);

			currentControl.getParent().layout(true);

			tabSetSearch = searchTab.getTabset();
		}

		tabSetSearch.setActiveTab(sTabID);

		SWTSkinObject searchResultsTabsView = skin.getSkinObject("search-results-tabs");
		if (searchResultsTabsView == null) {
			System.err.println("searchResultsTabs null");
			return;
		}

		sTabID = "internal.tab.searchresults."
				+ Integer.toHexString(sSearchText.hashCode());
		SWTSkinObjectTab tabSearchResult = null;

		String sTabSetID = SWTSkinTabSet.getTabSetID(skin, searchResultsTabsView,
				"tab");
		SWTSkinTabSet tabSetSearchResults = skin.getTabSet(sTabSetID);
		SWTSkinObject lastTab = null;
		if (tabSetSearchResults != null) {
			SWTSkinObject[] tabs = tabSetSearchResults.getTabs();
			if (tabs.length > 0) {
				lastTab = tabs[tabs.length - 1];
			}

			tabSearchResult = tabSetSearchResults.getTab(sTabID);
		}

		if (tabSearchResult == null) {
			// Create tab specifically for this search

			tabSearchResult = skin.createTab(sTabID, "tab", searchResultsTabsView);

			if (tabSetSearchResults == null) {
				tabSetSearchResults = skin.getTabSet(sTabSetID);
			}

			Control currentControl = tabSearchResult.getControl();

			// Attach the new tab to the previous one
			if (lastTab != null) {
				FormData formData = (FormData) currentControl.getLayoutData();
				if (formData == null) {
					formData = new FormData();
				}
				formData.left = new FormAttachment(lastTab.getControl(), 2);
				currentControl.setLayoutData(formData);
			}

			// Set the new tab's text
			SWTSkinObject tabText = skin.getSkinObject("search-result-tab-text",
					tabSearchResult);
			if (tabText instanceof SWTSkinObjectText) {
				((SWTSkinObjectText) tabText).setText(sSearchText);
			}

			searchResultsTabsView.getControl().getParent().layout(true, true);

			String[] activeWidgetIDs = tabSearchResult.getActiveWidgetIDs();
			SWTSkinObject searchResultsView = skin.getSkinObject("search-results-view");
			if (activeWidgetIDs.length == 1 && searchResultsView != null) {
				String sContentConfigID = activeWidgetIDs[0];

				String sContentID = "internal.tab.searchresults.content."
						+ Integer.toHexString(sSearchText.hashCode());
				SWTSkinObject searchResultsContent = skin.createSkinObject(sContentID,
						sContentConfigID, searchResultsView);

				tabSearchResult.setActiveWidgets(new SWTSkinObject[] { searchResultsContent
				});

				SWTSkinObject searchResultsContentG = skin.getSkinObject(
						"search-results-google", searchResultsContent);
				if (searchResultsContentG != null) {
					Composite cArea = (Composite) searchResultsContentG.getControl();

					final Browser browser = new Browser(cArea, SWT.NONE);
					final ClientMessageContext context = new BrowserContext("search",
							browser, null);
					context.addMessageListener(new TorrentListener(core));
					browser.setLayoutData(Utils.getFilledFormData());
					//					browser.setUrl("http://www.google.com/search?num=5&q="
					//		+ UrlUtils.encode(sSearchText + " torrent"));
					browser.setUrl(sURL);
					cArea.layout(true, true);
				}

				SWTSkinObject searchResultsContentN = skin.getSkinObject(
						"search-results-network", searchResultsContent);
				if (searchResultsContentN != null) {
					Composite cArea = (Composite) searchResultsContentN.getControl();

					final Browser browser = new Browser(cArea, SWT.NONE);
					final ClientMessageContext context = new BrowserContext("search",
							browser, null);

					browser.setLayoutData(Utils.getFilledFormData());

					NetworkSearch.search(core, sSearchText, browser);

					cArea.layout(true, true);
				}
			}
		}

		// activate!
		if (tabSetSearchResults != null) {
			tabSetSearchResults.setActiveTab(sTabID);
		}
	}

	// @see com.aelitis.azureus.ui.swt.skin.SWTSkinTabSetListener#tabChanged(com.aelitis.azureus.ui.swt.skin.SWTSkinTabSet, java.lang.String, java.lang.String)
	public void tabChanged(SWTSkinTabSet tabSet, String oldTabID, String newTabID) {
		updateMapTrackUsage(oldTabID);

		if (tabSet.getID().equals("maintabs")) {
			// TODO: Don't use internal skin IDs.  Skin needs to provide an ViewID
			//        we can query (or is passed in)
			if (newTabID.equals("maintabs.advanced")) {
				createOldMainWindow();
				if (oldMainMenu != null) {
					oldMainMenu.linkMenuBar(shell);
				}
			} else if (newTabID.equals("maintabs.home")
					&& oldTabID.equals("maintabs.home")) {
				SkinView view = SkinViewManager.get(MiniBrowse.class);
				if (view instanceof MiniBrowse) {
					((MiniBrowse) view).restart();
				}
			} else if (newTabID.equals("maintabs.browse")
					&& oldTabID.equals("maintabs.browse")) {
				SkinView view = SkinViewManager.get(Browse.class);
				if (view instanceof Browse) {
					((Browse) view).restart();
				}
			} else if (newTabID.equals("maintabs.publish")
					&& oldTabID.equals("maintabs.publish")) {
				SkinView view = SkinViewManager.get(Publish.class);
				if (view instanceof Publish) {
					((Publish) view).restart();
				}
			}

			if (!newTabID.equals("maintabs.advanced") && oldMainMenu != null) {
				menu.linkMenuBar(shell);
			}
		}
	}

	/**
	 * 
	 */
	private void updateMapTrackUsage(String sTabID) {
		if (mapTrackUsage != null) {
			mapTrackUsage_mon.enter();
			try {
				Long currentLength = (Long) mapTrackUsage.get(sTabID);
				if (currentLength == null) {
					currentLength = new Long(lCurrentTrackTime);
				} else {
					currentLength = new Long(currentLength.longValue()
							+ lCurrentTrackTime);
				}
				mapTrackUsage.put(sTabID, currentLength);
			} finally {
				mapTrackUsage_mon.exit();
			}
		}

		lCurrentTrackTime = 0;
	}

	/**
	 * 
	 */
	private void createOldMainWindow() {
		if (oldMainWindow != null || disposedOrDisposing) {
			return;
		}

		if (uiSWTInstanceImpl == null) {
			System.out.println("This will end only in disaster! "
					+ Debug.getCompressedStackTrace());
		}

		SWTSkinObject skinObject = skin.getSkinObject("advanced");
		if (skinObject != null) {
			Composite cArea = (Composite) skinObject.getControl();

			Label lblWait = new Label(cArea, SWT.CENTER);
			FormData formData = new FormData();
			formData.left = new FormAttachment(0, 0);
			formData.right = new FormAttachment(100, 0);
			formData.top = new FormAttachment(0, 0);
			formData.bottom = new FormAttachment(100, 0);
			lblWait.setLayoutData(formData);
			Messages.setLanguageText(lblWait, "MainWindow.v3.view.wait");
			cArea.layout(true);
			lblWait.update();

			cArea.setBackground(cArea.getShell().getBackground());

			oldMainWindow = new org.gudy.azureus2.ui.swt.mainwindow.MainWindow(core,
					null, cArea.getShell(), cArea, uiSWTInstanceImpl);
			oldMainWindow.setShowMainWindow(false);
			oldMainWindow.runSupport();

			oldMainMenu = new org.gudy.azureus2.ui.swt.mainwindow.MainMenu(shell);
			oldMainMenu.createMenu(core, shell);
			oldMainMenu.setMainWindow(oldMainWindow);
			oldMainWindow.setMenu(oldMainMenu);

			Menu viewMenu = oldMainMenu.getMenu(org.gudy.azureus2.ui.swt.mainwindow.MainMenu.MENU_VIEW);
			if (viewMenu != null) {
				menu.addToOldMenuView(viewMenu);
			}

			uiFunctions.oldMainWindowInitialized(oldMainWindow);

			lblWait.dispose();
			cArea.layout(true);
		}
	}

	public org.gudy.azureus2.ui.swt.mainwindow.MainWindow getOldMainWindow(
			boolean bForceCreate) {
		if (oldMainWindow == null && bForceCreate) {
			createOldMainWindow();
		}
		return oldMainWindow;
	}

	public UIFunctionsSWT getOldUIFunctions(boolean bCreateOld) {
		if (oldMainWindow == null && bCreateOld) {
			createOldMainWindow();
		}
		if (oldMainWindow != null) {
			return oldMainWindow.getUIFunctions();
		}
		return null;
	}

	public void switchToAdvancedTab() {
		SWTSkinTabSet tabSetMain = skin.getTabSet("maintabs");
		if (tabSetMain == null) {
			System.err.println("maintabs");
			return;
		}

		tabSetMain.setActiveTab("maintabs.advanced");
	}

	public UISWTInstance getUISWTInstanceImpl() {
		return uiSWTInstanceImpl;
	}

	/**
	 * @param url
	 * @param target
	 */
	public void showURL(String url, String target) {

		SWTSkinObject skinObject = skin.getSkinObject(target);

		skin.activateTab(skinObject);

		if (skinObject instanceof SWTSkinObjectBrowser) {
			((SWTSkinObjectBrowser) skinObject).getBrowser().setVisible(false);
			if (url == null || url.length() == 0) {
				((SWTSkinObjectBrowser) skinObject).restart();
			} else {
				((SWTSkinObjectBrowser) skinObject).setURL(url);
			}
		}
	}
}