1 files changed, 271 insertions, 0 deletions
diff --git a/android/source/src/java/org/libreoffice/overlay/DocumentOverlay.java b/android/source/src/java/org/libreoffice/overlay/DocumentOverlay.java
new file mode 100644
index 000000000..f977866a2
--- /dev/null
+++ b/android/source/src/java/org/libreoffice/overlay/DocumentOverlay.java
@@ -0,0 +1,271 @@
+/* -*- 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.graphics.RectF;
+import android.util.Log;
+
+import org.libreoffice.LOKitShell;
+import org.libreoffice.LibreOfficeMainActivity;
+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;
+
+    private final long hidePageNumberRectDelayInMilliseconds = 500;
+
+    /**
+     * 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(LibreOfficeMainActivity context, LayerView layerView) {
+        mDocumentOverlayView = 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);
+    }
+
+    public void setPartPageRectangles(List<RectF> rectangles) {
+        mDocumentOverlayView.setPartPageRectangles(rectangles);
+    }
+
+    /**
+     * 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();
+            }
+        });
+    }
+
+    /**
+     * Show the page number rectangle on the overlay.
+     */
+    public void showPageNumberRect() {
+        LOKitShell.getMainHandler().post(new Runnable() {
+            public void run() {
+                mDocumentOverlayView.showPageNumberRect();
+            }
+        });
+    }
+
+    /**
+     * Hide the page number rectangle on the overlay.
+     */
+    public void hidePageNumberRect() {
+        LOKitShell.getMainHandler().postDelayed(new Runnable() {
+            public void run() {
+                mDocumentOverlayView.hidePageNumberRect();
+            }
+        }, hidePageNumberRectDelayInMilliseconds);
+    }
+
+    /**
+     * 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);
+            }
+        });
+    }
+
+    public RectF getCurrentCursorPosition() {
+        return mDocumentOverlayView.getCurrentCursorPosition();
+    }
+
+    public void setCalcHeadersController(CalcHeadersController calcHeadersController) {
+        mDocumentOverlayView.setCalcHeadersController(calcHeadersController);
+    }
+
+    public void showCellSelection(final RectF cellCursorRect) {
+        LOKitShell.getMainHandler().post(new Runnable() {
+            public void run() {
+                mDocumentOverlayView.showCellSelection(cellCursorRect);
+            }
+        });
+    }
+
+    public void showHeaderSelection(final RectF cellCursorRect) {
+        LOKitShell.getMainHandler().post(new Runnable() {
+            public void run() {
+                mDocumentOverlayView.showHeaderSelection(cellCursorRect);
+            }
+        });
+    }
+
+    public void showAdjustLengthLine(final boolean isRow, final CalcHeadersView view) {
+        LOKitShell.getMainHandler().post(new Runnable() {
+            @Override
+            public void run() {
+                mDocumentOverlayView.showAdjustLengthLine(isRow, view);
+            }
+        });
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */