Example usage for com.google.gwt.user.client.ui ScrollListener ScrollListener

Introduction

In this page you can find the example usage for com.google.gwt.user.client.ui ScrollListener ScrollListener.

Prototype

ScrollListener

Source Link

Usage

From source file:cc.alcina.framework.gwt.client.gwittir.widget.BoundTableExt.java

License:Open Source License

private void init(int masksValue) {
    renderContext = RenderContext.get().snapshot();
    // GWT.log( "Init "+ +masksValue + " :: "+((masksValue &
    // BoundTable.MULTI_REQUIRES_SHIFT) > 0), null);
    final BoundTableExt instance = this;
    this.topBinding = new Binding();
    this.masks = masksValue;
    this.factory = (this.factory == null) ? new BoundWidgetTypeFactory(true) : this.factory;
    if (((this.masks & BoundTableExt.SORT_MASK) > 0) && (this.columns != null)) {
        this.ascending = new boolean[this.columns.length];
    }// w w  w.jav a  2  s.c  o  m
    if ((this.masks & BoundTableExt.MULTIROWSELECT_MASK) > 0) {
        this.selectedRowStyles = new HashMap();
    }
    if (((this.masks & BoundTableExt.ROW_HANDLE_MASK) > 0)
            && ((this.masks & BoundTableExt.MULTIROWSELECT_MASK) > 0)) {
        this.allRowsHandle = new Button("  ", new ClickListener() {
            public void onClick(Widget sender) {
                if ((getSelected() != null) && (getSelected().size() == 0)) {
                    setSelected(new ArrayList((Collection) getValue()));
                } else {
                    setSelected(new ArrayList());
                }
            }
        });
        this.allRowsHandle.setStyleName("rowHandle");
        this.allRowsHandle.setHeight("100%");
        this.allRowsHandle.setWidth("100%");
        if ((this.masks & BoundTableExt.MULTIROWSELECT_MASK) == 0) {
            this.allRowsHandle.setEnabled(false);
        }
    }
    if ((this.masks & BoundTableExt.ROW_HANDLE_MASK) > 0) {
        this.rowHandles = new ArrayList();
    }
    esp = new EventingSimplePanel();
    createTable();
    if ((masks & BoundTableExt.SCROLL_MASK) > 0) {
        if ("".isEmpty()) {
            throw new UnsupportedOperationException();
        }
        this.scroll = new ScrollPanel();
        this.scroll.setWidget(table);
        super.initWidget(esp);
        scroll.addScrollListener(new ScrollListener() {
            public void onScroll(Widget widget, int scrollLeft, int scrollTop) {
                // GWT.log("HasProvider: " + (provider != null), null);
                if ((provider != null) && (inChunk == false)
                        && (scrollTop >= (table.getOffsetHeight() - scroll.getOffsetHeight()))) {
                    // GWT.log("Scroll Event fired. ", null);
                    lastScrollPosition = scrollTop - 1;
                    next();
                }
            }
        });
    } else {
        super.initWidget(esp);
    }
    this.value = (this.value == null) ? new ArrayList() : this.value;
    this.columns = (this.columns == null) ? new Field[0] : this.columns;
    this.setStyleName("gwittir-BoundTable");
    if ((masks & BoundTableExt.HANDLES_AS_CHECKBOXES) > 0) {
        this.addStyleName("handles-as-checkboxes");
    }
    if ((this.provider != null) && (this.getCurrentChunk() == -1)) {
        this.inChunk = true;
        this.provider.init(this);
    }
    this.addPropertyChangeListener("selected", new PropertyChangeListener() {
        public void propertyChange(PropertyChangeEvent propertyChangeEvent) {
            if (getAction() != null) {
                getAction().execute(instance);
            }
        }
    });
    this.addPropertyChangeListener("active", new PropertyChangeListener() {
        public void propertyChange(PropertyChangeEvent propertyChangeEvent) {
            boolean newActive = ((Boolean) propertyChangeEvent.getNewValue()).booleanValue();
            if ((masks & BoundTableExt.ROW_HANDLE_MASK) > 0
                    && (masks & BoundTableExt.HANDLES_AS_CHECKBOXES) == 0) {
                for (int i = 0; i < rowHandles.size(); i++) {
                    ((Button) rowHandles.get(i))
                            .setText((newActive && (i <= 8)) ? Integer.toString(i + 1) : " ");
                }
            }
            for (Iterator it = keyBindings.entrySet().iterator(); it.hasNext();) {
                Entry entry = (Entry) it.next();
                handleBinding(newActive, entry);
            }
            for (Iterator it = externalKeyBindings.entrySet().iterator(); it.hasNext();) {
                Entry entry = (Entry) it.next();
                handleBinding(newActive, entry);
            }
        }

        private void handleBinding(boolean newActive, Entry entry) {
            KeyBinding kb = (KeyBinding) entry.getKey();
            Object execute = entry.getValue();
            if (newActive) {
                BoundTableExt.LOG.log(Level.SPAM, "Registering " + kb, null);
                try {
                    if (execute instanceof Task) {
                        KeyboardController.INSTANCE.register(kb, (Task) execute);
                    } else if (execute instanceof Action) {
                        KeyboardController.INSTANCE.register(kb, (Action) execute);
                    } else if (execute instanceof BoundWidget) {
                        KeyboardController.INSTANCE.register(kb, (BoundWidget) execute);
                    }
                } catch (KeyBindingException kbe) {
                    BoundTableExt.LOG.log(Level.DEBUG, "Unable to register" + kb, kbe);
                }
            } else {
                boolean result = KeyboardController.INSTANCE.unregister(kb);
                BoundTableExt.LOG.log(Level.SPAM, "Unregistering " + kb + " " + result, null);
            }
        }
    });
}

---

From source file:com.totsp.gwittir.client.ui.table.BoundTable.java

License:Open Source License

private void init(int masksValue) {
    //GWT.log( "Init "+ +masksValue + " :: "+((masksValue & BoundTable.MULTI_REQUIRES_SHIFT) > 0), null);
    final BoundTable instance = this;
    this.topBinding = new Binding();
    this.masks = masksValue;
    this.factory = (this.factory == null) ? new BoundWidgetTypeFactory(true) : this.factory;

    if (((this.masks & BoundTable.SORT_MASK) > 0) && (this.columns != null)) {
        this.ascending = new boolean[this.columns.length];
    }/*from  w w w  . j  ava  2s  .c  o m*/

    if ((this.masks & BoundTable.MULTIROWSELECT_MASK) > 0) {
        this.selectedRowStyles = new HashMap();
    }

    if (((this.masks & BoundTable.ROW_HANDLE_MASK) > 0)
            && ((this.masks & BoundTable.MULTIROWSELECT_MASK) > 0)) {
        this.allRowsHandle = new Button("  ", new ClickListener() {

            public void onClick(Widget sender) {
                if ((getSelected() != null) && (getSelected().size() == 0)) {
                    setSelected(new ArrayList((Collection) getValue()));
                } else {
                    setSelected(new ArrayList());
                }
            }
        });
        this.allRowsHandle.setStyleName("rowHandle");
        this.allRowsHandle.setHeight("100%");
        this.allRowsHandle.setWidth("100%");

        if ((this.masks & BoundTable.MULTIROWSELECT_MASK) == 0) {
            this.allRowsHandle.setEnabled(false);
        }
    }

    if ((this.masks & BoundTable.ROW_HANDLE_MASK) > 0) {
        this.rowHandles = new ArrayList();
    }

    this.table = createTableImpl();
    this.table.setCellPadding(0);
    this.table.setCellSpacing(0);

    EventingSimplePanel esp = new EventingSimplePanel();
    esp.setWidget(table);

    if ((masks & BoundTable.SCROLL_MASK) > 0) {
        this.scroll = new ScrollPanel();
        this.scroll.setWidget(table);
        super.initWidget(esp);

        scroll.addScrollListener(new ScrollListener() {

            public void onScroll(Widget widget, int scrollLeft, int scrollTop) {
                //GWT.log("HasProvider: " + (provider != null), null);
                if ((provider != null) && (inChunk == false)
                        && (scrollTop >= (table.getOffsetHeight() - scroll.getOffsetHeight()))) {
                    //GWT.log("Scroll Event fired. ", null);
                    lastScrollPosition = scrollTop - 1;
                    next();
                }
            }
        });
    } else {
        super.initWidget(esp);
    }

    this.table.setCellSpacing(0);
    table.addTableListener(new TableListener() {

        public void onCellClicked(SourcesTableEvents sender, int row, int cell) {
            setActive(true);

            int startColumn = ((masks & BoundTable.ROW_HANDLE_MASK) > 0) ? 1 : 0;

            if (startColumn == 0) {
                handleSelect(true, row, cell);
            }

            if (((masks & BoundTable.SORT_MASK) > 0) && ((masks & BoundTable.HEADER_MASK) > 0) && (row == 0)) {
                sortColumn(cell - startColumn);
            }
        }
    });
    this.base = ((this.scroll == null) ? (Widget) this.table : (Widget) this.scroll);
    this.value = (this.value == null) ? new ArrayList() : this.value;
    this.columns = (this.columns == null) ? new Field[0] : this.columns;
    this.setStyleName("gwittir-BoundTable");

    if ((this.provider != null) && (this.getCurrentChunk() == -1)) {
        this.provider.init(this);
        this.inChunk = true;
    }

    this.addPropertyChangeListener("selected", new PropertyChangeListener() {

        public void propertyChange(PropertyChangeEvent propertyChangeEvent) {
            if (getAction() != null) {
                getAction().execute(instance);
            }
        }
    });
    this.addPropertyChangeListener("active", new PropertyChangeListener() {

        public void propertyChange(PropertyChangeEvent propertyChangeEvent) {
            boolean newActive = ((Boolean) propertyChangeEvent.getNewValue()).booleanValue();

            if ((masks & BoundTable.ROW_HANDLE_MASK) > 0) {
                for (int i = 0; i < rowHandles.size(); i++) {
                    ((Button) rowHandles.get(i))
                            .setText((newActive && (i <= 8)) ? Integer.toString(i + 1) : " ");
                }
            }

            for (Iterator it = keyBindings.entrySet().iterator(); it.hasNext();) {
                Entry entry = (Entry) it.next();
                handleBinding(newActive, entry);
            }

            for (Iterator it = externalKeyBindings.entrySet().iterator(); it.hasNext();) {
                Entry entry = (Entry) it.next();
                handleBinding(newActive, entry);
            }
        }

        private void handleBinding(boolean newActive, Entry entry) {
            KeyBinding kb = (KeyBinding) entry.getKey();
            Object execute = entry.getValue();

            if (newActive) {
                BoundTable.LOG.log(Level.SPAM, "Registering " + kb, null);

                try {
                    if (execute instanceof Task) {
                        KeyboardController.INSTANCE.register(kb, (Task) execute);
                    } else if (execute instanceof Action) {
                        KeyboardController.INSTANCE.register(kb, (Action) execute);
                    } else if (execute instanceof BoundWidget) {
                        KeyboardController.INSTANCE.register(kb, (BoundWidget) execute);
                    }
                } catch (KeyBindingException kbe) {
                    BoundTable.LOG.log(Level.DEBUG, "Unable to register" + kb, kbe);
                }
            } else {
                boolean result = KeyboardController.INSTANCE.unregister(kb);
                BoundTable.LOG.log(Level.SPAM, "Unregistering " + kb + " " + result, null);
            }
        }
    });
}

---