tmf/org.eclipse.tracecompass.tmf.ui/src/org/eclipse/tracecompass/tmf/ui/views/timegraph/ShowFindDialogAction.java

   1 /*******************************************************************************
   2  * Copyright (c) 2016 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *******************************************************************************/
   9 package org.eclipse.tracecompass.tmf.ui.views.timegraph;
  10
  11 import org.eclipse.jface.action.Action;
  12 import org.eclipse.tracecompass.internal.tmf.ui.Activator;
  13 import org.eclipse.tracecompass.internal.tmf.ui.ITmfImageConstants;
  14 import org.eclipse.tracecompass.internal.tmf.ui.Messages;
  15 import org.eclipse.tracecompass.tmf.ui.views.timegraph.AbstractTimeGraphView.FindTarget;
  16 import org.eclipse.tracecompass.tmf.ui.widgets.timegraph.model.ITimeGraphEntry;
  17 import org.eclipse.ui.IWorkbenchPart;
  18
  19 /**
  20  * Action to show a time graph find dialog to search for a
  21  * {@link ITimeGraphEntry}
  22  *
  23  * @author Jean-Christian Kouame
  24  */
  25 class ShowFindDialogAction extends Action {
  26
  27     private static final int SHELL_MINIMUM_SIZE = 320;
  28     private static TimeGraphFindDialog fDialog;
  29     private FindTarget fFindTarget;
  30
  31     /**
  32      * Constructor
  33      */
  34     public ShowFindDialogAction() {
  35         setText(Messages.ShowFindDialogAction_Search);
  36         setToolTipText(Messages.ShowFindDialogAction_ShowSearchDialog);
  37         setImageDescriptor(Activator.getDefault().getImageDescripterFromPath(ITmfImageConstants.IMG_UI_SEARCH));
  38     }
  39
  40     @Override
  41     public void run() {
  42         FindTarget findTarget = fFindTarget;
  43         if (findTarget == null) {
  44             return;
  45         }
  46         checkShell(findTarget);
  47         if (fDialog == null) {
  48             fDialog = new TimeGraphFindDialog(findTarget.getShell());
  49         }
  50         if (fDialog != null) {
  51             fDialog.update(findTarget);
  52             fDialog.open();
  53             fDialog.getShell().setMinimumSize(SHELL_MINIMUM_SIZE, SHELL_MINIMUM_SIZE);
  54         }
  55     }
  56
  57     /**
  58      * Checks if the dialogs shell is the same as the given <code>shell</code>
  59      * and if not clears the stub and closes the dialog.
  60      *
  61      * @param target
  62      *            the target that owns the shell to check
  63      */
  64     public void checkShell(FindTarget target) {
  65         if (fDialog != null && !fDialog.isDialogParentShell(target.getShell())) {
  66             fDialog.close();
  67             fDialog = null;
  68         }
  69     }
  70
  71     /**
  72      * Define what to do when a part is activated.
  73      *
  74      * @param part
  75      *            The activated workbenchPart
  76      */
  77     public synchronized void partActivated(IWorkbenchPart part) {
  78         FindTarget newTarget = null;
  79         if (part instanceof AbstractTimeGraphView) {
  80             newTarget = ((AbstractTimeGraphView) part).getFindTarget();
  81             if (newTarget != fFindTarget) {
  82                 fFindTarget = newTarget;
  83             }
  84         }
  85         /*
  86          *  Update target in all for all parts. If it is null the dialog will
  87          *  disable the find button.
  88          */
  89         if (fDialog != null) {
  90             fDialog.updateTarget(newTarget, false);
  91         }
  92     }
  93
  94 }