Bug 130262 [Regression]Click Data Explorer does not cancel palette insert mode
Description: Click Data Explorer does not cancel palette insert mode. Steps to reproduce: 1. Click grid in Palette, then click Data Explorer Result: Move mouse to Layout, it still keep the status of insert grid mode. By the way, after step1, if I clicked a col in dataset and drag it to Layout, the column was inserted as expected but the mouse cursor still kept the insert grid mode.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/MultiPageReportEditor.java
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 * are made available under the terms of the Eclipse Public License v1.0
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 * Contributors:
 *     Actuate Corporation - Initial implementation.
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package org.eclipse.birt.report.designer.ui.editors;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.eclipse.birt.report.designer.core.model.SessionHandleAdapter;
import org.eclipse.birt.report.designer.core.util.mediator.request.ReportRequest;
import org.eclipse.birt.report.designer.internal.ui.editors.FileReportProvider;
import org.eclipse.birt.report.designer.internal.ui.editors.IReportEditor;
import org.eclipse.birt.report.designer.internal.ui.editors.LibraryProvider;
import org.eclipse.birt.report.designer.internal.ui.editors.parts.GraphicalEditorWithFlyoutPalette;