diff options
Diffstat (limited to 'android/source/src/java/org/libreoffice/LOKitTileProvider.java')
| -rw-r--r-- | android/source/src/java/org/libreoffice/LOKitTileProvider.java | 510 |
1 files changed, 510 insertions, 0 deletions
diff --git a/android/source/src/java/org/libreoffice/LOKitTileProvider.java b/android/source/src/java/org/libreoffice/LOKitTileProvider.java new file mode 100644 index 000000000000..00af8d51b1d5 --- /dev/null +++ b/android/source/src/java/org/libreoffice/LOKitTileProvider.java @@ -0,0 +1,510 @@ +/* -*- 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.GeckoLayerClient; +import org.mozilla.gecko.gfx.IntSize; + +import java.nio.ByteBuffer; + +/** + * LOKit implementation of TileProvider. + */ +public class LOKitTileProvider implements TileProvider { + private static final String LOGTAG = LOKitTileProvider.class.getSimpleName(); + private static int TILE_SIZE = 256; + private final GeckoLayerClient mLayerClient; + private final float mTileWidth; + private final float mTileHeight; + private final String mInputFile; + private Office mOffice; + private Document mDocument; + private boolean mIsReady = false; + + 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 layerClient - layerclient implementation + * @param messageCallback - callback for messages retrieved from LOKit + * @param input - input path of the document + */ + public LOKitTileProvider(GeckoLayerClient layerClient, Document.MessageCallback messageCallback, String input) { + mLayerClient = layerClient; + mMessageCallback = messageCallback; + mDPI = (float) LOKitShell.getDpi(); + mTileWidth = pixelToTwip(TILE_SIZE, mDPI); + mTileHeight = pixelToTwip(TILE_SIZE, mDPI); + + LibreOfficeKit.putenv("SAL_LOG=+WARN+INFO"); + LibreOfficeKit.init(LibreOfficeMainActivity.mAppContext); + + mOffice = new Office(LibreOfficeKit.getLibreOfficeKitHandle()); + + mInputFile = input; + + Log.i(LOGTAG, "====> Loading file '" + input + "'"); + mDocument = mOffice.documentLoad(input); + + if (mDocument == null) { + 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"); + mDocument = mOffice.documentLoad(input); + } + + Log.i(LOGTAG, "====> mDocument = " + mDocument); + + 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); + + LibreOfficeMainActivity.mAppContext.getDocumentPartView().clear(); + + // 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); + LibreOfficeMainActivity.mAppContext.getDocumentPartView().add(partView); + } + } else { + LibreOfficeMainActivity.mAppContext.disableNavigationDrawer(); + } + + mDocument.setPart(0); + + LOKitShell.getMainHandler().post(new Runnable() { + @Override + public void run() { + LibreOfficeMainActivity.mAppContext.getDocumentPartViewListAdapter().notifyDataSetChanged(); + } + }); + } + + 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); + } + } + + public static float twipToPixel(float input, float dpi) { + return input / 1440.0f * dpi; + } + + public static float pixelToTwip(float input, float dpi) { + return (input / dpi) * 1440.0f; + } + + + /** + * @see TileProvider#getPartsCount() + */ + @Override + public int getPartsCount() { + return mDocument.getParts(); + } + + /** + * @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) { + final String message = error; + LOKitShell.getMainHandler().post(new Runnable() { + @Override + public void run() { + LibreOfficeMainActivity.mAppContext.showAlertDialog(message); + } + }); + } + + 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(Office.KEY_PRESS, codePoint, getKeyCode(keyEvent)); + } + } else if (keyEvent.getAction() == KeyEvent.ACTION_DOWN) { + mDocument.postKeyEvent(Office.KEY_PRESS, getCharCode(keyEvent), getKeyCode(keyEvent)); + } else if (keyEvent.getAction() == KeyEvent.ACTION_UP) { + mDocument.postKeyEvent(Office.KEY_RELEASE, getCharCode(keyEvent), getKeyCode(keyEvent)); + } + } + + private void mouseButton(int type, PointF inDocument, int numberOfClicks) { + int x = (int) pixelToTwip(inDocument.x, mDPI); + int y = (int) pixelToTwip(inDocument.y, mDPI); + + mDocument.postMouseEvent(type, x, y, numberOfClicks); + } + + /** + * @see TileProvider#mouseButtonDown(android.graphics.PointF, int) + */ + @Override + public void mouseButtonDown(PointF documentCoordinate, int numberOfClicks) { + mouseButton(Document.MOUSE_BUTTON_DOWN, documentCoordinate, numberOfClicks); + } + + /** + * @see TileProvider#mouseButtonUp(android.graphics.PointF, int) + */ + @Override + public void mouseButtonUp(PointF documentCoordinate, int numberOfClicks) { + mouseButton(Document.MOUSE_BUTTON_UP, documentCoordinate, numberOfClicks); + } + + @Override + public void postUnoCommand(String command) { + mDocument.postUnoCommand(command); + } + + 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(); + } +} + +// vim:set shiftwidth=4 softtabstop=4 expandtab: |