Package org.objectstyle.wolips.componenteditor.part

Source Code of org.objectstyle.wolips.componenteditor.part.HtmlWodTab

/*
* ====================================================================
*
* The ObjectStyle Group Software License, Version 1.0
*
* Copyright (c) 2006 The ObjectStyle Group and individual authors of the
* software. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met: 1.
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer. 2. Redistributions in
* binary form must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution. 3. The end-user documentation
* included with the redistribution, if any, must include the following
* acknowlegement: "This product includes software developed by the ObjectStyle
* Group (http://objectstyle.org/)." Alternately, this acknowlegement may
* appear in the software itself, if and wherever such third-party
* acknowlegements normally appear. 4. The names "ObjectStyle Group" and
* "Cayenne" must not be used to endorse or promote products derived from this
* software without prior written permission. For written permission, please
* contact andrus@objectstyle.org. 5. Products derived from this software may
* not be called "ObjectStyle" nor may "ObjectStyle" appear in their names
* without prior written permission of the ObjectStyle Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* OBJECTSTYLE GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many individuals
* on behalf of the ObjectStyle Group. For more information on the ObjectStyle
* Group, please see <http://objectstyle.org/> .
*/
package org.objectstyle.wolips.componenteditor.part;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ControlEvent;
import org.eclipse.swt.events.ControlListener;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IEditorSite;
import org.eclipse.ui.IPropertyListener;
import org.eclipse.ui.PartInitException;
import org.objectstyle.wolips.componenteditor.ComponenteditorPlugin;
import org.objectstyle.wolips.components.input.ComponentEditorFileEditorInput;
import org.objectstyle.wolips.templateeditor.TemplateEditor;
import org.objectstyle.wolips.wodclipse.WodclipsePlugin;
import org.objectstyle.wolips.wodclipse.core.Activator;
import org.objectstyle.wolips.wodclipse.editor.WodEditor;

public class HtmlWodTab extends ComponentEditorTab {
  private static final String SASH_WEIGHTS_KEY = "org.objectstyle.wolips.componenteditor.sashWeights";

  private TemplateEditor templateEditor;

  private WodEditor wodEditor;

  private boolean htmlActive;

  private IEditorInput htmlInput;

  private IEditorInput wodInput;

  private Composite _templateContainer;

  private Composite _wodContainer;

  private Label nonEmptyWodWarning;

  public HtmlWodTab(ComponentEditorPart componentEditorPart, int tabIndex, IEditorInput htmlInput, IEditorInput wodInput) {
    super(componentEditorPart, tabIndex);
    this.htmlInput = htmlInput;
    this.wodInput = wodInput;
  }

  public IEditorPart getActiveEmbeddedEditor() {
    if (htmlActive) {
      return templateEditor;
    }
    return wodEditor;
  }
 
  public void createTab() {
    templateEditor = new TemplateEditor();
    IEditorSite htmlSite = this.getComponentEditorPart().publicCreateSite(templateEditor);
    try {
      templateEditor.init(htmlSite, htmlInput);
    } catch (PartInitException e) {
      ComponenteditorPlugin.getDefault().log(e);
    }
    _templateContainer = createInnerPartControl(getParentSashForm(), templateEditor);
    templateEditor.addPropertyListener(new IPropertyListener() {
      public void propertyChanged(Object source, int propertyId) {
        HtmlWodTab.this.getComponentEditorPart().publicHandlePropertyChange(propertyId);
      }
    });
    if (wodInput != null && ((ComponentEditorFileEditorInput)wodInput).getFile().exists()) {
      wodEditor = new WodEditor();
      IEditorSite wodSite = this.getComponentEditorPart().publicCreateSite(wodEditor);
      try {
        wodEditor.init(wodSite, wodInput);
      } catch (PartInitException e) {
        ComponenteditorPlugin.getDefault().log(e);
      }
      _wodContainer = createInnerPartControl(getParentSashForm(), wodEditor);
      _wodContainer.setBackground(_wodContainer.getDisplay().getSystemColor(SWT.COLOR_WHITE));
      wodEditor.addPropertyListener(new IPropertyListener() {
        public void propertyChanged(Object source, int propertyId) {
          HtmlWodTab.this.getComponentEditorPart().publicHandlePropertyChange(propertyId);
        }
      });
      wodEditor.getSelectionProvider().addSelectionChangedListener(new ISelectionChangedListener() {
        public void selectionChanged(SelectionChangedEvent event) {
          WodclipsePlugin.getDefault().updateWebObjectsTagNames(null);
        }
      });
      WodclipsePlugin.getDefault().updateWebObjectsTagNames(wodEditor);
      _templateContainer.addListener(SWT.Activate, new Listener() {
        public void handleEvent(Event event) {
          setHtmlActive(true);
          HtmlWodTab.this.getComponentEditorPart().pageChange(HtmlWodTab.this.getTabIndex());
          HtmlWodTab.this.getComponentEditorPart().updateOutline();
        }
      });
      _wodContainer.addListener(SWT.Activate, new Listener() {
        public void handleEvent(Event event) {
          setHtmlActive(false);
          HtmlWodTab.this.getComponentEditorPart().pageChange(HtmlWodTab.this.getTabIndex());
          HtmlWodTab.this.getComponentEditorPart().updateOutline();
        }
      });
    }

    restoreSashWeights();
    hideWodIfNecessary();

    _templateContainer.addControlListener(new ControlListener() {
      public void controlMoved(ControlEvent e) {
        // DO NOTHING
      }

      public void controlResized(ControlEvent e) {
        HtmlWodTab.this.saveSashWeights();
        HtmlWodTab.this.hideWodIfNecessary();
      }
    });

    templateEditor.initEditorInteraction(this.getComponentEditorPart().getEditorInteraction());
    if (wodEditor != null) {
      wodEditor.initEditorInteraction(this.getComponentEditorPart().getEditorInteraction());
    }

    this.addWebObjectsTagNamesListener();
  }

  public boolean isHtmlActive() {
    return this.htmlActive;
  }

  protected void setHtmlActive(boolean htmlActive) {
    this.htmlActive = htmlActive;
  }

  protected void hideWodIfNecessary() {
    if (this._wodContainer == null) {
      int[] weights = new int[] { 100 };
      getParentSashForm().setWeights(weights);
      return;
    }
   
    int[] weights = getParentSashForm().getWeights();
    if (weights.length >= 2 && weights[1] < 132) {
      if (this.nonEmptyWodWarning == null) {
        this._wodContainer.getChildren()[0].setVisible(false);
        this.nonEmptyWodWarning = new Label(this._wodContainer, SWT.CENTER);
        this.nonEmptyWodWarning.setBackground(this._wodContainer.getBackground());
        this.nonEmptyWodWarning.setForeground(this._wodContainer.getDisplay().getSystemColor(SWT.COLOR_GRAY));
        if (this.wodEditor.getWodEditDocument().getLength() > 0) {
          this.nonEmptyWodWarning.setText("wod file is not empty");
        }
        else {
          this.nonEmptyWodWarning.setText("");
        }
        this.nonEmptyWodWarning.moveAbove(this._wodContainer.getChildren()[0]);

        // MS: If the wod shrinks, force focus to the template
        if (!isHtmlActive()) {
          _templateContainer.forceFocus();
        }
      }
    } else if (this.nonEmptyWodWarning != null) {
      this.nonEmptyWodWarning.dispose();
      this.nonEmptyWodWarning = null;
      this._wodContainer.getChildren()[0].setVisible(true);
    }
  }

  protected void restoreSashWeights() {
    String sashWeightsStr = Activator.getDefault().getPluginPreferences().getString(HtmlWodTab.SASH_WEIGHTS_KEY);
    if (sashWeightsStr != null && sashWeightsStr.length() > 0) {
      String[] sashWeightStrs = sashWeightsStr.split(",");
      int[] sashWeights = new int[sashWeightStrs.length];
      for (int sashWeightNum = 0; sashWeightNum < sashWeightStrs.length; sashWeightNum++) {
        sashWeights[sashWeightNum] = Integer.parseInt(sashWeightStrs[sashWeightNum]);
      }
      if (sashWeights.length == getParentSashForm().getWeights().length) {
        getParentSashForm().setWeights(sashWeights);
      }
    }
  }

  protected void saveSashWeights() {
    int[] weights = getParentSashForm().getWeights();
    StringBuffer weightsBuffer = new StringBuffer();
    for (int weight : weights) {
      weightsBuffer.append(weight);
      weightsBuffer.append(",");
    }
    if (weightsBuffer.length() > 0) {
      weightsBuffer.setLength(weightsBuffer.length() - 1);
    }
    Activator.getDefault().getPluginPreferences().setValue(HtmlWodTab.SASH_WEIGHTS_KEY, weightsBuffer.toString());
  }

  /**
   * @return the template editor for this html/wod composite.
   */

  public TemplateEditor templateEditor() {
    return templateEditor;
  }

  /**
   * @return the wod editor for this html/wod composite.
   */

  public WodEditor wodEditor() {
    return wodEditor;
  }

  public void doSave(IProgressMonitor monitor) {
    if (wodEditor != null && wodEditor.isDirty()) {
      wodEditor.doSave(monitor);
    }
    if (templateEditor.isDirty()) {
      templateEditor.doSave(monitor);
    }
  }

  public void close(boolean save) {
    if (wodEditor != null) {
      wodEditor.close(save);
    }
    // templateEditor.close(save);
  }

  @Override
  public void dispose() {
    if (wodEditor != null) {
      wodEditor.dispose();
    }
    templateEditor.dispose();
    super.dispose();
  }

  public boolean isDirty() {
    return (wodEditor != null && wodEditor.isDirty()) || templateEditor.isDirty();
  }

  private void addWebObjectsTagNamesListener() {
    // templateEditor.getSelectionProvider().addSelectionChangedListener(new
    // ISelectionChangedListener() {
    // public void selectionChanged(SelectionChangedEvent event) {
    // WodclipsePlugin.getDefault().updateWebObjectsTagNames(null);
    // }
    // });
    if (wodEditor == null) {
      return;
    }
   
    final WodEditor finalWodEditor = wodEditor;
    wodEditor.getSelectionProvider().addSelectionChangedListener(new ISelectionChangedListener() {

      public void selectionChanged(SelectionChangedEvent event) {
        WodclipsePlugin.getDefault().updateWebObjectsTagNames(finalWodEditor);
      }

    });
    WodclipsePlugin.getDefault().updateWebObjectsTagNames(wodEditor);
  }

  public void setHtmlActive() {
    setHtmlActive(true);
  }

  public void setWodActive() {
    setHtmlActive(false);
  }

  public IEditorInput getActiveEditorInput() {
    if (this.htmlActive) {
      return this.htmlInput;
    }
    return this.wodInput;
  }

}
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