Java tutorial
/** * openkm, Open Document Management System (http://www.openkm.com) * Copyright (c) 2006-2013 Paco Avila & Josep Llort * * No bytes were intentionally harmed during the development of this application. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ package com.ikon.frontend.client.widget.searchuser; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.user.client.DOM; import com.google.gwt.user.client.Element; import com.google.gwt.user.client.Event; import com.google.gwt.user.client.ui.FlexTable; import com.ikon.frontend.client.Main; /** * Extends FlexTable functionalities * * @author jllort * */ public class ExtendedFlexTable extends FlexTable { private int mouseX = 0; private int mouseY = 0; private boolean panelSelected = true; // Indicates if panel is selected private int selectedRow = -1; /** * ExtendedFlexTable */ public ExtendedFlexTable() { super(); // Adds double click event control to table ( on default only has CLICK ) sinkEvents(Event.ONDBLCLICK | Event.MOUSEEVENTS); addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { // Mark selected row or orders rows if header row (0) is clicked // And row must be other than the selected one markSelectedRow(getCellForEvent(event).getRowIndex()); } }); } /* (non-Javadoc) * @see com.google.gwt.user.client.EventListener#onBrowserEvent(com.google.gwt.user.client.Event) */ public void onBrowserEvent(Event event) { int selectedRow = 0; if (DOM.eventGetType(event) == Event.ONDBLCLICK || DOM.eventGetType(event) == Event.ONMOUSEDOWN) { Element td = getMouseEventTargetCell(event); if (td == null) return; Element tr = DOM.getParent(td); Element body = DOM.getParent(tr); selectedRow = DOM.getChildIndex(body, tr); } // Only if selectedRow >= 0, indicates a document row value and must apear menu or double click action if (selectedRow >= 0) { // When de button mouse is released mouseX = DOM.eventGetClientX(event); mouseY = DOM.eventGetClientY(event); // On double click not sends event to onCellClicked across super.onBrowserEvent(); if (DOM.eventGetType(event) == Event.ONDBLCLICK) { // Disables the event propagation the sequence is: // Two time entry onCellClicked before entry on onBrowserEvent and disbles the // Tree onCellClicked that produces inconsistence error refreshing DOM.eventCancelBubble(event, true); Main.get().mainPanel.search.historySearch.userNews.getSearch(); } else if (DOM.eventGetType(event) == Event.ONMOUSEDOWN) { switch (DOM.eventGetButton(event)) { case Event.BUTTON_RIGHT: markSelectedRow(selectedRow); Main.get().mainPanel.search.historySearch.userNews.showMenu(); DOM.eventPreventDefault(event); // Prevent to fire event to browser break; default: break; } } } super.onBrowserEvent(event); } /** * markSelectedRow * * @param row */ private void markSelectedRow(int row) { setSelectedPanel(true); if (row != selectedRow) { styleRow(selectedRow, false); styleRow(row, true); selectedRow = row; } } /** * Method originally copied from HTMLTable superclass where it was defined private * Now implemented differently to only return target cell if it'spart of 'this' table */ private Element getMouseEventTargetCell(Event event) { Element td = DOM.eventGetTarget(event); //locate enclosing td element while (!DOM.getElementProperty(td, "tagName").equalsIgnoreCase("td")) { // If we run out of elements, or run into the table itself, then give up. if ((td == null) || td == getElement()) return null; td = DOM.getParent(td); } //test if the td is actually from this table Element tr = DOM.getParent(td); Element body = DOM.getParent(tr); if (body == this.getBodyElement()) { return td; } //Didn't find appropriate cell return null; } /** * Sets the selected panel value * * @param selected The selected panel value */ public void setSelectedPanel(boolean selected) { // Case panel is not still selected and must enable this and disable result search panel if (!isPanelSelected() && selected) { Main.get().mainPanel.search.searchBrowser.searchResult.setSelectedPanel(false); } if (selected) { Main.get().mainPanel.search.historySearch.scrollSearchSavedPanel.addStyleName("okm-PanelSelected"); Main.get().mainPanel.search.historySearch.scrollUserNewsSavedPanel.addStyleName("okm-PanelSelected"); } else { Main.get().mainPanel.search.historySearch.scrollSearchSavedPanel.removeStyleName("okm-PanelSelected"); Main.get().mainPanel.search.historySearch.scrollUserNewsSavedPanel.removeStyleName("okm-PanelSelected"); } panelSelected = selected; } /** * Change the style row selected or unselected * * @param row The row afected * @param selected Indicates selected unselected row */ public void styleRow(int row, boolean selected) { // Ensures that header is never changed if (row >= 0) { if (selected) { getRowFormatter().addStyleName(row, "okm-SearchSaved-SelectedRow"); } else { getRowFormatter().removeStyleName(row, "okm-SearchSaved-SelectedRow"); } } } /** * Removes all rows except the first */ public void removeAllRows() { // Resets selected Rows and Col values selectedRow = -1; super.removeAllRows(); } /** * Gets the selected row value * * @return The selected row value */ public int getSelectedRow() { return selectedRow; } /** * Sets the selected row * * @param row The row number */ public void setSelectedRow(int row) { if (row > 0 && row < getRowCount()) { if (selectedRow > 0) { styleRow(selectedRow, false); } styleRow(row, true); selectedRow = row; } } /** * Removes the selected row */ public void removeSelectedRow() { if (selectedRow > 0) { styleRow(selectedRow, false); } selectedRow = -1; } /** * After deletes document or folder selects a row */ public void selectPrevRow() { // After deletes document or folder selects a previous row if not 0 or the next if exists ( next row is actual after delete ) // RowCount minor value is 1 for header titles if (getRowCount() > 1) { if (selectedRow > 1) { selectedRow--; } styleRow(selectedRow, true); } else { // Case deletes all table rows selectedRow = -1; } } /** * Indicates if panel is selected * * @return The value of panel ( selected ) */ public boolean isPanelSelected() { return panelSelected; } /** * Gets the X position on mouse click * * @return The x position on mouse click */ public int getMouseX() { return mouseX; } /** * Gets the Y position on mouse click * * @return The y position on mouse click */ public int getMouseY() { return mouseY; } }