Example usage for com.google.gwt.view.client MultiSelectionModel isSelected

List of usage examples for com.google.gwt.view.client MultiSelectionModel isSelected

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Introduction

In this page you can find the example usage for com.google.gwt.view.client MultiSelectionModel isSelected.

Prototype

public boolean isSelected(T object)

Source Link

Usage

From source file:org.gss_project.gss.web.client.GSSSelectionEventManager.java

License:Open Source License

/**
 * Update the selection model based on a user selection event.
 * /*from  ww  w  .j a  v a 2  s.  co  m*/
 * @param selectionModel the selection model to update
 * @param row the selected row index relative to the page start
 * @param rowValue the selected row value
 * @param action the {@link SelectAction} to apply
 * @param selectRange true to select the range from the last selected row
 * @param clearOthers true to clear the current selection
 */
public void doMultiSelection(MultiSelectionModel<? super T> selectionModel, HasData<T> display, int row,
        T rowValue, SelectAction action, boolean selectRange, boolean clearOthers) {
    // Determine if we will add or remove selection.
    boolean addToSelection = true;
    if (action != null) {
        switch (action) {
        case IGNORE:
            // Ignore selection.
            return;
        case SELECT:
            addToSelection = true;
            break;
        case DESELECT:
            addToSelection = false;
            break;
        case TOGGLE:
            addToSelection = !selectionModel.isSelected(rowValue);
            break;
        }
    }

    // Determine which rows will be newly selected.
    int pageStart = display.getVisibleRange().getStart();
    if (selectRange && pageStart == lastPageStart && lastSelectedIndex > -1 && shiftAnchor > -1
            && display == lastDisplay) {
        /*
         * Get the new shift bounds based on the existing shift anchor and the
         * selected row.
         */
        int start = Math.min(shiftAnchor, row); // Inclusive.
        int end = Math.max(shiftAnchor, row); // Inclusive.

        if (lastSelectedIndex < start) {
            // Revert previous selection if the user reselects a smaller range.
            setRangeSelection(selectionModel, display, new Range(lastSelectedIndex, start - lastSelectedIndex),
                    !shiftAdditive, false);
        } else if (lastSelectedIndex > end) {
            // Revert previous selection if the user reselects a smaller range.
            setRangeSelection(selectionModel, display, new Range(end + 1, lastSelectedIndex - end),
                    !shiftAdditive, false);
        } else {
            // Remember if we are adding or removing rows.
            shiftAdditive = addToSelection;
        }

        // Update the last selected row, but do not move the shift anchor.
        lastSelectedIndex = row;

        // Select the range.
        setRangeSelection(selectionModel, display, new Range(start, end - start + 1), shiftAdditive,
                clearOthers);
    } else {
        /*
         * If we are not selecting a range, save the last row and set the shift
         * anchor.
         */
        lastDisplay = display;
        lastPageStart = pageStart;
        lastSelectedIndex = row;
        shiftAnchor = row;
        selectOne(selectionModel, rowValue, addToSelection, clearOthers);
    }
}

From source file:org.gss_project.gss.web.client.GSSSelectionEventManager.java

License:Open Source License

/**
 * Handle an event that could cause a value to be selected for a
 * {@link MultiSelectionModel}. This overloaded method adds support for both
 * the control and shift keys. If the shift key is held down, all rows between
 * the previous selected row and the current row are selected.
 * //from  w  ww . ja  v  a2  s  . com
 * @param event the {@link CellPreviewEvent} that triggered selection
 * @param action the action to handle
 * @param selectionModel the {@link SelectionModel} to update
 */
protected void handleMultiSelectionEvent(CellPreviewEvent<T> event, SelectAction action,
        MultiSelectionModel<? super T> selectionModel) {
    NativeEvent nativeEvent = event.getNativeEvent();
    String type = nativeEvent.getType();
    boolean rightclick = "mousedown".equals(type) && nativeEvent.getButton() == NativeEvent.BUTTON_RIGHT;
    if (rightclick) {
        boolean shift = nativeEvent.getShiftKey();
        boolean ctrlOrMeta = nativeEvent.getCtrlKey() || nativeEvent.getMetaKey();
        boolean clearOthers = (translator == null) ? !ctrlOrMeta : translator.clearCurrentSelection(event);
        if (action == null || action == SelectAction.DEFAULT) {
            action = ctrlOrMeta ? SelectAction.TOGGLE : SelectAction.SELECT;
        }
        //if the row is selected then do nothing
        if (selectionModel.isSelected(event.getValue())) {
            return;
        }
        doMultiSelection(selectionModel, event.getDisplay(), event.getIndex(), event.getValue(), action, shift,
                clearOthers);
    } else if ("click".equals(type)) {
        /*
         * Update selection on click. Selection is toggled only if the user
         * presses the ctrl key. If the user does not press the control key,
         * selection is additive.
         */
        boolean shift = nativeEvent.getShiftKey();
        boolean ctrlOrMeta = nativeEvent.getCtrlKey() || nativeEvent.getMetaKey();
        boolean clearOthers = (translator == null) ? !ctrlOrMeta : translator.clearCurrentSelection(event);
        if (action == null || action == SelectAction.DEFAULT) {
            action = ctrlOrMeta ? SelectAction.TOGGLE : SelectAction.SELECT;
        }
        doMultiSelection(selectionModel, event.getDisplay(), event.getIndex(), event.getValue(), action, shift,
                clearOthers);
        if (ctrlOrMeta) {
            event.setCanceled(true);
        }
    } else if ("keyup".equals(type)) {
        int keyCode = nativeEvent.getKeyCode();
        if (keyCode == 32) {
            /*
             * Update selection when the space bar is pressed. The spacebar always
             * toggles selection, regardless of whether the control key is pressed.
             */
            boolean shift = nativeEvent.getShiftKey();
            boolean clearOthers = (translator == null) ? false : translator.clearCurrentSelection(event);
            if (action == null || action == SelectAction.DEFAULT) {
                action = SelectAction.TOGGLE;
            }
            doMultiSelection(selectionModel, event.getDisplay(), event.getIndex(), event.getValue(), action,
                    shift, clearOthers);
        }
    }
}

From source file:org.zanata.webtrans.client.presenter.SearchResultsPresenter.java

License:Open Source License

/**
 * Build selection change handler to uncheck 'Select All' in document list
 * if any child is unchecked//from www .j  ava  2s.c om
 *
 * @param docId
 * @param selectionModel
 * @param dataProvider
 * @return
 */
private Handler buildSelectionChangeDeselectHandler(final Long docId,
        final MultiSelectionModel<TransUnitReplaceInfo> selectionModel,
        final ListDataProvider<TransUnitReplaceInfo> dataProvider) {
    return event -> {
        boolean isAllSelected = true;
        for (TransUnitReplaceInfo data : dataProvider.getList()) {
            if (!selectionModel.isSelected(data)) {
                isAllSelected = false;
                break;
            }
        }

        if (selectAllDocList.containsKey(docId)) {
            selectAllDocList.get(docId).setValue(isAllSelected);
        }

        isAllSelected = true;
        for (HasValue<Boolean> docSelectAll : selectAllDocList.values()) {
            if (!docSelectAll.getValue().booleanValue()) {
                isAllSelected = false;
                break;
            }
        }
        display.getSelectAllChk().setValue(isAllSelected);
    };
}

From source file:org.zanata.webtrans.client.presenter.SearchResultsPresenter.java

License:Open Source License

private void executePostSucess(UpdateTransUnitResult result) {
    for (TransUnitUpdateInfo info : result.getUpdateInfoList()) {
        TransUnitReplaceInfo replaceInfo = allReplaceInfos.get(info.getTransUnit().getId());
        setReplaceState(replaceInfo, ReplacementState.NotReplaced);
        if (replaceInfo.getPreview() == null) {
            replaceInfo.setPreviewState(PreviewState.NotFetched);
        } else {//from   ww  w .  j  a v  a 2 s. com
            MultiSelectionModel<TransUnitReplaceInfo> selectionModel = documentSelectionModels
                    .get(replaceInfo.getDocId());
            if (selectionModel != null && selectionModel.isSelected(replaceInfo)) {
                replaceInfo.setPreviewState(PreviewState.Show);
            } else {
                replaceInfo.setPreviewState(PreviewState.Hide);
            }
        }
        refreshInfoDisplay(replaceInfo);
    }
    refreshReplaceAllButton();
}