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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;
import android.graphics.Bitmap;
import android.graphics.PointF;
import android.util.Log;
import android.view.KeyEvent;
import org.libreoffice.kit.DirectBufferAllocator;
import org.libreoffice.kit.Document;
import org.libreoffice.kit.LibreOfficeKit;
import org.libreoffice.kit.Office;
import org.mozilla.gecko.gfx.BufferedCairoImage;
import org.mozilla.gecko.gfx.CairoImage;
import org.mozilla.gecko.gfx.IntSize;
import java.nio.ByteBuffer;
/**
* LOKit implementation of TileProvider.
*/
class LOKitTileProvider implements TileProvider {
private static final String LOGTAG = LOKitTileProvider.class.getSimpleName();
private static int TILE_SIZE = 256;
private final float mTileWidth;
private final float mTileHeight;
private final String mInputFile;
private Office mOffice;
private Document mDocument;
private boolean mIsReady = false;
private LibreOfficeMainActivity mContext;
private float mDPI;
private float mWidthTwip;
private float mHeightTwip;
private Document.MessageCallback mMessageCallback;
private long objectCreationTime = System.currentTimeMillis();
/**
* Initialize LOKit and load the document.
* @param messageCallback - callback for messages retrieved from LOKit
* @param input - input path of the document
*/
LOKitTileProvider(LibreOfficeMainActivity context, InvalidationHandler messageCallback, String input) {
mContext = context;
mMessageCallback = messageCallback;
LibreOfficeKit.putenv("SAL_LOG=+WARN+INFO");
LibreOfficeKit.init(mContext);
mOffice = new Office(LibreOfficeKit.getLibreOfficeKitHandle());
mOffice.setMessageCallback(messageCallback);
mOffice.setOptionalFeatures(Document.LOK_FEATURE_DOCUMENT_PASSWORD);
mContext.setTileProvider(this);
mInputFile = input;
Log.i(LOGTAG, "====> Loading file '" + input + "'");
mDocument = mOffice.documentLoad(input);
if (mDocument == null && !mContext.isPasswordProtected()) {
Log.i(LOGTAG, "====> mOffice.documentLoad() returned null, trying to restart 'Office' and loading again");
mOffice.destroy();
Log.i(LOGTAG, "====> mOffice.destroy() done");
ByteBuffer handle = LibreOfficeKit.getLibreOfficeKitHandle();
Log.i(LOGTAG, "====> getLibreOfficeKitHandle() = " + handle);
mOffice = new Office(handle);
Log.i(LOGTAG, "====> new Office created");
mOffice.setMessageCallback(messageCallback);
mOffice.setOptionalFeatures(Document.LOK_FEATURE_DOCUMENT_PASSWORD);
Log.i(LOGTAG, "====> setup Lokit callback and optional features (password support)");
mDocument = mOffice.documentLoad(input);
}
Log.i(LOGTAG, "====> mDocument = " + mDocument);
if(isSpreadsheet()) {
mContext.setIsSpreadsheet(true); // Calc is treated differently e.g. DPI = 96f
}
mDPI = LOKitShell.getDpi(mContext);
mTileWidth = pixelToTwip(TILE_SIZE, mDPI);
mTileHeight = pixelToTwip(TILE_SIZE, mDPI);
if (mDocument != null)
mDocument.initializeForRendering();
if (checkDocument()) {
postLoad();
mIsReady = true;
} else {
mIsReady = false;
}
}
/**
* Triggered after the document is loaded.
*/
private void postLoad() {
mDocument.setMessageCallback(mMessageCallback);
int parts = mDocument.getParts();
Log.i(LOGTAG, "Document parts: " + parts);
mContext.getDocumentPartView().clear();
if (mDocument.getDocumentType() == Document.DOCTYPE_PRESENTATION) {
mContext.getToolbarController().disableMenuItem(R.id.action_presentation, false);
mContext.getToolbarController().disableMenuItem(R.id.action_add_slide, false);
}
// Writer documents always have one part, so hide the navigation drawer.
if (mDocument.getDocumentType() != Document.DOCTYPE_TEXT) {
for (int i = 0; i < parts; i++) {
String partName = mDocument.getPartName(i);
if (partName.isEmpty()) {
partName = getGenericPartName(i);
}
Log.i(LOGTAG, "Document part " + i + " name:'" + partName + "'");
mDocument.setPart(i);
resetDocumentSize();
final DocumentPartView partView = new DocumentPartView(i, partName);
mContext.getDocumentPartView().add(partView);
}
} else {
mContext.disableNavigationDrawer();
mContext.getToolbarController().disableMenuItem(R.id.action_parts, true);
}
// Enable headers for Calc documents
if (mDocument.getDocumentType() == Document.DOCTYPE_SPREADSHEET) {
mContext.initializeCalcHeaders();
}
mDocument.setPart(0);
setupDocumentFonts();
LOKitShell.getMainHandler().post(new Runnable() {
@Override
public void run() {
mContext.getDocumentPartViewListAdapter().notifyDataSetChanged();
}
});
mContext.runOnUiThread(new Runnable() {
@Override
public void run() {
if (mContext.pendingInsertGraphic) {
mContext.getFormattingController().popCompressImageGradeSelection();
}
}
});
}
public void addPart(){
int parts = mDocument.getParts();
LOKitShell.sendEvent(new LOEvent(LOEvent.UNO_COMMAND, ".uno:InsertPage"));
String partName = mDocument.getPartName(parts);
if (partName.isEmpty()) {
partName = getGenericPartName(parts);
}
mDocument.setPart(parts);
resetDocumentSize();
final DocumentPartView partView = new DocumentPartView(parts, partName);
mContext.getDocumentPartView().add(partView);
}
@Override
public void saveDocumentAs(String filePath, String format) {
final String newFilePath = "file://" + filePath;
Log.d("saveFilePathURL", newFilePath);
LOKitShell.showProgressSpinner(mContext);
mDocument.saveAs(newFilePath, format, "");
if (!mOffice.getError().isEmpty()){
Log.e("Save Error", mOffice.getError());
if (format.equals("svg")) {
// error in creating temp slideshow svg file
Log.d(LOGTAG, "Error in creating temp slideshow svg file");
} else {
LOKitShell.getMainHandler().post(new Runnable() {
@Override
public void run() {
// There was some error
mContext.showSaveStatusMessage(true);
}
});
}
} else {
if (format.equals("svg")) {
// successfully created temp slideshow svg file
LOKitShell.getMainHandler().post(new Runnable() {
@Override
public void run() {
mContext.startPresentation(newFilePath);
}
});
} else {
LOKitShell.getMainHandler().post(new Runnable() {
@Override
public void run() {
// There was no error
mContext.showSaveStatusMessage(false);
}
});
}
}
LOKitShell.hideProgressSpinner(mContext);
}
private void setupDocumentFonts() {
String values = mDocument.getCommandValues(".uno:CharFontName");
if (values == null || values.isEmpty())
return;
mContext.getFontController().parseJson(values);
mContext.getFontController().setupFontViews();
}
private String getGenericPartName(int i) {
if (mDocument == null) {
return "";
}
switch (mDocument.getDocumentType()) {
case Document.DOCTYPE_DRAWING:
case Document.DOCTYPE_TEXT:
return "Page " + (i + 1);
case Document.DOCTYPE_SPREADSHEET:
return "Sheet " + (i + 1);
case Document.DOCTYPE_PRESENTATION:
return "Slide " + (i + 1);
case Document.DOCTYPE_OTHER:
default:
return "Part " + (i + 1);
}
}
static float twipToPixel(float input, float dpi) {
return input / 1440.0f * dpi;
}
private static float pixelToTwip(float input, float dpi) {
return (input / dpi) * 1440.0f;
}
/**
* @see TileProvider#getPartsCount()
*/
@Override
public int getPartsCount() {
return mDocument.getParts();
}
/**
* Wrapper for getPartPageRectangles() JNI function.
*/
public String getPartPageRectangles() {
return mDocument.getPartPageRectangles();
}
/**
* Fetch Calc header information.
*/
public String getCalcHeaders() {
long nX = 0;
long nY = 0;
long nWidth = mDocument.getDocumentWidth();
long nHeight = mDocument.getDocumentHeight();
return mDocument.getCommandValues(".uno:ViewRowColumnHeaders?x=" + nX + "&y=" + nY
+ "&width=" + nWidth + "&height=" + nHeight);
}
/**
* @see TileProvider#onSwipeLeft()
*/
@Override
public void onSwipeLeft() {
if (mDocument.getDocumentType() == Document.DOCTYPE_PRESENTATION &&
getCurrentPartNumber() < getPartsCount()-1) {
LOKitShell.sendChangePartEvent(getCurrentPartNumber()+1);
}
}
/**
* @see TileProvider#onSwipeRight()
*/
@Override
public void onSwipeRight() {
if (mDocument.getDocumentType() == Document.DOCTYPE_PRESENTATION &&
getCurrentPartNumber() > 0) {
LOKitShell.sendChangePartEvent(getCurrentPartNumber()-1);
}
}
private boolean checkDocument() {
String error = null;
boolean ret;
if (mDocument == null || !mOffice.getError().isEmpty()) {
error = "Cannot open " + mInputFile + ": " + mOffice.getError();
ret = false;
} else {
ret = resetDocumentSize();
if (!ret) {
error = "Document returned an invalid size or the document is empty.";
}
}
if (!ret && !mContext.isPasswordProtected()) {
final String message = error;
LOKitShell.getMainHandler().post(new Runnable() {
@Override
public void run() {
mContext.showAlertDialog(message);
}
});
} else if (!ret && mContext.isPasswordProtected()) {
mContext.finish();
}
return ret;
}
private boolean resetDocumentSize() {
mWidthTwip = mDocument.getDocumentWidth();
mHeightTwip = mDocument.getDocumentHeight();
if (mWidthTwip == 0 || mHeightTwip == 0) {
Log.e(LOGTAG, "Document size zero - last error: " + mOffice.getError());
return false;
} else {
Log.i(LOGTAG, "Reset document size: " + mDocument.getDocumentWidth() + " x " + mDocument.getDocumentHeight());
}
return true;
}
/**
* @see TileProvider#getPageWidth()
*/
@Override
public int getPageWidth() {
return (int) twipToPixel(mWidthTwip, mDPI);
}
/**
* @see TileProvider#getPageHeight()
*/
@Override
public int getPageHeight() {
return (int) twipToPixel(mHeightTwip, mDPI);
}
/**
* @see TileProvider#isReady()
*/
@Override
public boolean isReady() {
return mIsReady;
}
/**
* @see TileProvider#createTile(float, float, org.mozilla.gecko.gfx.IntSize, float)
*/
@Override
public CairoImage createTile(float x, float y, IntSize tileSize, float zoom) {
ByteBuffer buffer = DirectBufferAllocator.guardedAllocate(tileSize.width * tileSize.height * 4);
if (buffer == null)
return null;
CairoImage image = new BufferedCairoImage(buffer, tileSize.width, tileSize.height, CairoImage.FORMAT_ARGB32);
rerenderTile(image, x, y, tileSize, zoom);
return image;
}
/**
* @see TileProvider#rerenderTile(org.mozilla.gecko.gfx.CairoImage, float, float, org.mozilla.gecko.gfx.IntSize, float)
*/
@Override
public void rerenderTile(CairoImage image, float x, float y, IntSize tileSize, float zoom) {
if (mDocument != null && image.getBuffer() != null) {
float twipX = pixelToTwip(x, mDPI) / zoom;
float twipY = pixelToTwip(y, mDPI) / zoom;
float twipWidth = mTileWidth / zoom;
float twipHeight = mTileHeight / zoom;
long start = System.currentTimeMillis() - objectCreationTime;
//Log.i(LOGTAG, "paintTile >> @" + start + " (" + tileSize.width + " " + tileSize.height + " " + (int) twipX + " " + (int) twipY + " " + (int) twipWidth + " " + (int) twipHeight + ")");
mDocument.paintTile(image.getBuffer(), tileSize.width, tileSize.height, (int) twipX, (int) twipY, (int) twipWidth, (int) twipHeight);
long stop = System.currentTimeMillis() - objectCreationTime;
//Log.i(LOGTAG, "paintTile << @" + stop + " elapsed: " + (stop - start));
} else {
if (mDocument == null) {
Log.e(LOGTAG, "Document is null!!");
}
}
}
/**
* @see TileProvider#thumbnail(int)
*/
@Override
public Bitmap thumbnail(int size) {
int widthPixel = getPageWidth();
int heightPixel = getPageHeight();
if (widthPixel > heightPixel) {
double ratio = heightPixel / (double) widthPixel;
widthPixel = size;
heightPixel = (int) (widthPixel * ratio);
} else {
double ratio = widthPixel / (double) heightPixel;
heightPixel = size;
widthPixel = (int) (heightPixel * ratio);
}
Log.w(LOGTAG, "Thumbnail size: " + getPageWidth() + " " + getPageHeight() + " " + widthPixel + " " + heightPixel);
ByteBuffer buffer = ByteBuffer.allocateDirect(widthPixel * heightPixel * 4);
if (mDocument != null)
mDocument.paintTile(buffer, widthPixel, heightPixel, 0, 0, (int) mWidthTwip, (int) mHeightTwip);
Bitmap bitmap = Bitmap.createBitmap(widthPixel, heightPixel, Bitmap.Config.ARGB_8888);
bitmap.copyPixelsFromBuffer(buffer);
if (bitmap == null) {
Log.w(LOGTAG, "Thumbnail not created!");
}
return bitmap;
}
/**
* @see TileProvider#close()
*/
@Override
public void close() {
Log.i(LOGTAG, "Document destroyed: " + mInputFile);
if (mDocument != null) {
mDocument.destroy();
mDocument = null;
}
}
/**
* @see TileProvider#isTextDocument()
*/
@Override
public boolean isTextDocument() {
return mDocument != null && mDocument.getDocumentType() == Document.DOCTYPE_TEXT;
}
/**
* @see TileProvider#isSpreadsheet()
*/
@Override
public boolean isSpreadsheet() {
return mDocument != null && mDocument.getDocumentType() == Document.DOCTYPE_SPREADSHEET;
}
/**
* Returns the Unicode character generated by this event or 0.
*/
private int getCharCode(KeyEvent keyEvent) {
switch (keyEvent.getKeyCode())
{
case KeyEvent.KEYCODE_DEL:
case KeyEvent.KEYCODE_ENTER:
return 0;
}
return keyEvent.getUnicodeChar();
}
/**
* Returns the integer code representing the key of the event (non-zero for
* control keys).
*/
private int getKeyCode(KeyEvent keyEvent) {
switch (keyEvent.getKeyCode()) {
case KeyEvent.KEYCODE_DEL:
return com.sun.star.awt.Key.BACKSPACE;
case KeyEvent.KEYCODE_ENTER:
return com.sun.star.awt.Key.RETURN;
}
return 0;
}
/**
* @see TileProvider#sendKeyEvent(android.view.KeyEvent)
*/
@Override
public void sendKeyEvent(KeyEvent keyEvent) {
if (keyEvent.getAction() == KeyEvent.ACTION_MULTIPLE) {
String keyString = keyEvent.getCharacters();
for (int i = 0; i < keyString.length(); i++) {
int codePoint = keyString.codePointAt(i);
mDocument.postKeyEvent(Document.KEY_EVENT_PRESS, codePoint, getKeyCode(keyEvent));
}
} else if (keyEvent.getAction() == KeyEvent.ACTION_DOWN) {
mDocument.postKeyEvent(Document.KEY_EVENT_PRESS, getCharCode(keyEvent), getKeyCode(keyEvent));
} else if (keyEvent.getAction() == KeyEvent.ACTION_UP) {
mDocument.postKeyEvent(Document.KEY_EVENT_RELEASE, getCharCode(keyEvent), getKeyCode(keyEvent));
}
}
private void mouseButton(int type, PointF inDocument, int numberOfClicks, float zoomFactor) {
int x = (int) pixelToTwip(inDocument.x, mDPI);
int y = (int) pixelToTwip(inDocument.y, mDPI);
mDocument.setClientZoom(TILE_SIZE, TILE_SIZE, (int) (mTileWidth / zoomFactor), (int) (mTileHeight / zoomFactor));
mDocument.postMouseEvent(type, x, y, numberOfClicks, Document.MOUSE_BUTTON_LEFT, Document.KEYBOARD_MODIFIER_NONE);
}
/**
* @see TileProvider#mouseButtonDown(android.graphics.PointF, int, float)
*/
@Override
public void mouseButtonDown(PointF documentCoordinate, int numberOfClicks, float zoomFactor) {
mouseButton(Document.MOUSE_EVENT_BUTTON_DOWN, documentCoordinate, numberOfClicks, zoomFactor);
}
/**
* @see TileProvider#mouseButtonUp(android.graphics.PointF, int, float)
*/
@Override
public void mouseButtonUp(PointF documentCoordinate, int numberOfClicks, float zoomFactor) {
mouseButton(Document.MOUSE_EVENT_BUTTON_UP, documentCoordinate, numberOfClicks, zoomFactor);
}
/**
* @param command UNO command string
* @param arguments Arguments to UNO command
*/
@Override
public void postUnoCommand(String command, String arguments) {
mDocument.postUnoCommand(command, arguments);
}
private void setTextSelection(int type, PointF documentCoordinate) {
int x = (int) pixelToTwip(documentCoordinate.x, mDPI);
int y = (int) pixelToTwip(documentCoordinate.y, mDPI);
mDocument.setTextSelection(type, x, y);
}
/**
* @see TileProvider#setTextSelectionStart(android.graphics.PointF)
*/
@Override
public void setTextSelectionStart(PointF documentCoordinate) {
setTextSelection(Document.SET_TEXT_SELECTION_START, documentCoordinate);
}
/**
* @see TileProvider#setTextSelectionEnd(android.graphics.PointF)
*/
@Override
public void setTextSelectionEnd(PointF documentCoordinate) {
setTextSelection(Document.SET_TEXT_SELECTION_END, documentCoordinate);
}
/**
* @see TileProvider#setTextSelectionReset(android.graphics.PointF)
*/
@Override
public void setTextSelectionReset(PointF documentCoordinate) {
setTextSelection(Document.SET_TEXT_SELECTION_RESET, documentCoordinate);
}
/**
* @see org.libreoffice.TileProvider#setGraphicSelectionStart(android.graphics.PointF)
*/
@Override
public void setGraphicSelectionStart(PointF documentCoordinate) {
setGraphicSelection(Document.SET_GRAPHIC_SELECTION_START, documentCoordinate);
}
/**
* @see org.libreoffice.TileProvider#setGraphicSelectionEnd(android.graphics.PointF)
*/
@Override
public void setGraphicSelectionEnd(PointF documentCoordinate) {
setGraphicSelection(Document.SET_GRAPHIC_SELECTION_END, documentCoordinate);
}
private void setGraphicSelection(int type, PointF documentCoordinate) {
int x = (int) pixelToTwip(documentCoordinate.x, mDPI);
int y = (int) pixelToTwip(documentCoordinate.y, mDPI);
mDocument.setGraphicSelection(type, x, y);
}
@Override
protected void finalize() throws Throwable {
close();
super.finalize();
}
/**
* @see TileProvider#changePart(int)
*/
@Override
public void changePart(int partIndex) {
if (mDocument == null)
return;
mDocument.setPart(partIndex);
resetDocumentSize();
}
/**
* @see TileProvider#getCurrentPartNumber()
*/
@Override
public int getCurrentPartNumber() {
if (mDocument == null)
return 0;
return mDocument.getPart();
}
public void setDocumentPassword(String url, String password) {
mOffice.setDocumentPassword(url, password);
}
public Document.MessageCallback getMessageCallback() {
return mMessageCallback;
}
}
// vim:set shiftwidth=4 softtabstop=4 expandtab:
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