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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.eclipse.org/org/documents/epl-v10.php
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.ide.eclipse.adt.internal.editors.manifest.pages;
import com.android.ide.eclipse.adt.AdtPlugin;
import com.android.ide.eclipse.adt.internal.editors.descriptors.AttributeDescriptor;
import com.android.ide.eclipse.adt.internal.editors.descriptors.XmlnsAttributeDescriptor;
import com.android.ide.eclipse.adt.internal.editors.manifest.ManifestEditor;
import com.android.ide.eclipse.adt.internal.editors.ui.UiElementPart;
import com.android.ide.eclipse.adt.internal.editors.uimodel.IUiUpdateListener;
import com.android.ide.eclipse.adt.internal.editors.uimodel.UiAttributeNode;
import com.android.ide.eclipse.adt.internal.editors.uimodel.UiElementNode;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.forms.IManagedForm;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.forms.widgets.Section;
/**
* Application's attributes section part for Application page.
* <p/>
* This part is displayed at the top of the application page and displays all the possible
* attributes of an application node in the AndroidManifest (icon, class name, label, etc.)
*/
final class ApplicationAttributesPart extends UiElementPart {
/** Listen to changes to the UI node for <application> and updates the UI */
private AppNodeUpdateListener mAppNodeUpdateListener;
/** ManagedForm needed to create the UI controls */
private IManagedForm mManagedForm;
public ApplicationAttributesPart(Composite body, FormToolkit toolkit, ManifestEditor editor,
UiElementNode applicationUiNode) {
super(body, toolkit, editor, applicationUiNode,
"Application Attributes", // section title
"Defines the attributes specific to the application.", // section description
Section.TWISTIE | Section.EXPANDED);
}
/**
* Changes and refreshes the Application UI node handle by the this part.
*/
@Override
public void setUiElementNode(UiElementNode uiElementNode) {
super.setUiElementNode(uiElementNode);
createUiAttributes(mManagedForm);
}
/* (non-java doc)
* Create the controls to edit the attributes for the given ElementDescriptor.
* <p/>
* This MUST not be called by the constructor. Instead it must be called from
* <code>initialize</code> (i.e. right after the form part is added to the managed form.)
* <p/>
* Derived classes can override this if necessary.
*
* @param managedForm The owner managed form
*/
@Override
protected void createFormControls(final IManagedForm managedForm) {
mManagedForm = managedForm;
setTable(createTableLayout(managedForm.getToolkit(), 4 /* numColumns */));
mAppNodeUpdateListener = new AppNodeUpdateListener();
getUiElementNode().addUpdateListener(mAppNodeUpdateListener);
createUiAttributes(mManagedForm);
}
@Override
public void dispose() {
super.dispose();
if (getUiElementNode() != null && mAppNodeUpdateListener != null) {
getUiElementNode().removeUpdateListener(mAppNodeUpdateListener);
mAppNodeUpdateListener = null;
}
}
@Override
protected void createUiAttributes(IManagedForm managedForm) {
Composite table = getTable();
if (table == null || managedForm == null) {
return;
}
// Remove any old UI controls
for (Control c : table.getChildren()) {
c.dispose();
}
UiElementNode uiElementNode = getUiElementNode();
AttributeDescriptor[] attr_desc_list = uiElementNode.getAttributeDescriptors();
// Display the attributes in 2 columns:
// attr 0 | attr 4
// attr 1 | attr 5
// attr 2 | attr 6
// attr 3 | attr 7
// that is we have to fill the grid in order 0, 4, 1, 5, 2, 6, 3, 7
// thus index = i/2 + (i is odd * n/2)
int n = attr_desc_list.length;
int n2 = (int) Math.ceil(n / 2.0);
for (int i = 0; i < n; i++) {
AttributeDescriptor attr_desc = attr_desc_list[i / 2 + (i & 1) * n2];
if (attr_desc instanceof XmlnsAttributeDescriptor) {
// Do not show hidden attributes
continue;
}
UiAttributeNode ui_attr = uiElementNode.findUiAttribute(attr_desc);
if (ui_attr != null) {
ui_attr.createUiControl(table, managedForm);
} else {
// The XML has an extra attribute which wasn't declared in
// AndroidManifestDescriptors. This is not a problem, we just ignore it.
AdtPlugin.log(IStatus.WARNING,
"Attribute %1$s not declared in node %2$s, ignored.", //$NON-NLS-1$
attr_desc.getXmlLocalName(),
uiElementNode.getDescriptor().getXmlName());
}
}
if (n == 0) {
createLabel(table, managedForm.getToolkit(),
"No attributes to display, waiting for SDK to finish loading...",
null /* tooltip */ );
}
// Initialize the enabled/disabled state
if (mAppNodeUpdateListener != null) {
mAppNodeUpdateListener.uiElementNodeUpdated(uiElementNode, null /* state, not used */);
}
// Tell the section that the layout has changed.
layoutChanged();
}
/**
* This listener synchronizes the UI with the actual presence of the application XML node.
*/
private class AppNodeUpdateListener implements IUiUpdateListener {
@Override
public void uiElementNodeUpdated(UiElementNode ui_node, UiUpdateState state) {
// The UiElementNode for the application XML node always exists, even
// if there is no corresponding XML node in the XML file.
//
// We enable the UI here if the XML node is not null.
Composite table = getTable();
boolean exists = (ui_node.getXmlNode() != null);
if (table != null && table.getEnabled() != exists) {
table.setEnabled(exists);
for (Control c : table.getChildren()) {
c.setEnabled(exists);
}
}
}
}
}
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