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/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
package org.libreoffice.overlay;
import android.app.Activity;
import android.graphics.RectF;
import android.util.Log;
import org.libreoffice.LOKitShell;
import org.libreoffice.R;
import org.libreoffice.canvas.SelectionHandle;
import org.mozilla.gecko.gfx.Layer;
import org.mozilla.gecko.gfx.LayerView;
import org.mozilla.gecko.util.FloatUtils;
import java.util.List;
/**
* The DocumentOverlay is an overlay over the document. This class is responsible
* to setup the document overlay view, report visibility and position of its elements
* when they change and report any changes to the viewport.
*/
public class DocumentOverlay {
private static final String LOGTAG = DocumentOverlay.class.getSimpleName();
private final DocumentOverlayView mDocumentOverlayView;
private final DocumentOverlayLayer mDocumentOverlayLayer;
/**
* DocumentOverlayLayer responsibility is to get the changes to the viewport
* and report them to DocumentOverlayView.
*/
private class DocumentOverlayLayer extends Layer {
private float mViewLeft;
private float mViewTop;
private float mViewZoom;
/**
* @see Layer#draw(org.mozilla.gecko.gfx.Layer.RenderContext)
*/
@Override
public void draw(final RenderContext context) {
if (FloatUtils.fuzzyEquals(mViewLeft, context.viewport.left)
&& FloatUtils.fuzzyEquals(mViewTop, context.viewport.top)
&& FloatUtils.fuzzyEquals(mViewZoom, context.zoomFactor)) {
return;
}
mViewLeft = context.viewport.left;
mViewTop = context.viewport.top;
mViewZoom = context.zoomFactor;
LOKitShell.getMainHandler().post(new Runnable() {
public void run() {
mDocumentOverlayView.repositionWithViewport(mViewLeft, mViewTop, mViewZoom);
}
});
}
}
public DocumentOverlay(Activity context, LayerView layerView) {
mDocumentOverlayView = (DocumentOverlayView) context.findViewById(R.id.text_cursor_view);
mDocumentOverlayLayer = new DocumentOverlayLayer();
if (mDocumentOverlayView == null) {
Log.e(LOGTAG, "Failed to initialize TextCursorLayer - CursorView is null");
}
layerView.addLayer(mDocumentOverlayLayer);
mDocumentOverlayView.initialize(layerView);
}
/**
* Show the cursor at the defined cursor position on the overlay.
*/
public void showCursor() {
LOKitShell.getMainHandler().post(new Runnable() {
public void run() {
mDocumentOverlayView.showCursor();
}
});
}
/**
* Hide the cursor at the defined cursor position on the overlay.
*/
public void hideCursor() {
LOKitShell.getMainHandler().post(new Runnable() {
public void run() {
mDocumentOverlayView.hideCursor();
}
});
}
/**
* Position the cursor to the input position on the overlay.
*/
public void positionCursor(final RectF position) {
LOKitShell.getMainHandler().post(new Runnable() {
public void run() {
mDocumentOverlayView.changeCursorPosition(position);
}
});
}
/**
* Show selections on the overlay.
*/
public void showSelections() {
LOKitShell.getMainHandler().post(new Runnable() {
public void run() {
mDocumentOverlayView.showSelections();
}
});
}
/**
* Hide selections on the overlay.
*/
public void hideSelections() {
LOKitShell.getMainHandler().post(new Runnable() {
public void run() {
mDocumentOverlayView.hideSelections();
}
});
}
/**
* Change the list of selections.
*/
public void changeSelections(final List<RectF> selections) {
LOKitShell.getMainHandler().post(new Runnable() {
public void run() {
mDocumentOverlayView.changeSelections(selections);
}
});
}
/**
* Show the graphic selection on the overlay.
*/
public void showGraphicSelection() {
LOKitShell.getMainHandler().post(new Runnable() {
public void run() {
mDocumentOverlayView.showGraphicSelection();
}
});
}
/**
* Hide the graphic selection.
*/
public void hideGraphicSelection() {
LOKitShell.getMainHandler().post(new Runnable() {
public void run() {
mDocumentOverlayView.hideGraphicSelection();
}
});
}
/**
* Change the graphic selection rectangle to the input rectangle.
*/
public void changeGraphicSelection(final RectF rectangle) {
LOKitShell.getMainHandler().post(new Runnable() {
public void run() {
mDocumentOverlayView.changeGraphicSelection(rectangle);
}
});
}
/**
* Show the handle (of input type) on the overlay.
*/
public void showHandle(final SelectionHandle.HandleType type) {
LOKitShell.getMainHandler().post(new Runnable() {
public void run() {
mDocumentOverlayView.showHandle(type);
}
});
}
/**
* Hide the handle (of input type).
*/
public void hideHandle(final SelectionHandle.HandleType type) {
LOKitShell.getMainHandler().post(new Runnable() {
public void run() {
mDocumentOverlayView.hideHandle(type);
}
});
}
/**
* Position the handle (of input type) position to the input rectangle.
*/
public void positionHandle(final SelectionHandle.HandleType type, final RectF rectangle) {
LOKitShell.getMainHandler().post(new Runnable() {
public void run() {
mDocumentOverlayView.positionHandle(type, rectangle);
}
});
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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