Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 133 insertions, 0 deletions

diff --git a/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/CompositorController.java b/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/CompositorController.java
new file mode 100644
index 0000000000..77bca329c4
--- /dev/null
+++ b/mobile/android/geckoview/src/main/java/org/mozilla/geckoview/CompositorController.java
@@ -0,0 +1,133 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * 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.mozilla.geckoview;
+
+import android.graphics.Color;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.annotation.UiThread;
+import java.util.ArrayList;
+import java.util.List;
+import org.mozilla.gecko.annotation.RobocopTarget;
+import org.mozilla.gecko.util.ThreadUtils;
+
+@UiThread
+public final class CompositorController {
+  private final GeckoSession.Compositor mCompositor;
+
+  private List<Runnable> mDrawCallbacks;
+  private int mDefaultClearColor = Color.WHITE;
+  private Runnable mFirstPaintCallback;
+
+  /* package */ CompositorController(final GeckoSession session) {
+    mCompositor = session.mCompositor;
+  }
+
+  /* package */ void onCompositorReady() {
+    mCompositor.setDefaultClearColor(mDefaultClearColor);
+    mCompositor.enableLayerUpdateNotifications(mDrawCallbacks != null && !mDrawCallbacks.isEmpty());
+  }
+
+  /* package */ void onCompositorDetached() {
+    if (mDrawCallbacks != null) {
+      mDrawCallbacks.clear();
+    }
+  }
+
+  /* package */ void notifyDrawCallbacks() {
+    if (mDrawCallbacks != null) {
+      for (final Runnable callback : mDrawCallbacks) {
+        callback.run();
+      }
+    }
+  }
+
+  /**
+   * Add a callback to run when drawing (layer update) occurs.
+   *
+   * @param callback Callback to add.
+   */
+  @RobocopTarget
+  public void addDrawCallback(final @NonNull Runnable callback) {
+    ThreadUtils.assertOnUiThread();
+
+    if (mDrawCallbacks == null) {
+      mDrawCallbacks = new ArrayList<Runnable>(2);
+    }
+
+    if (mDrawCallbacks.add(callback) && mDrawCallbacks.size() == 1 && mCompositor.isReady()) {
+      mCompositor.enableLayerUpdateNotifications(true);
+    }
+  }
+
+  /**
+   * Remove a previous draw callback.
+   *
+   * @param callback Callback to remove.
+   */
+  @RobocopTarget
+  public void removeDrawCallback(final @NonNull Runnable callback) {
+    ThreadUtils.assertOnUiThread();
+
+    if (mDrawCallbacks == null) {
+      return;
+    }
+
+    if (mDrawCallbacks.remove(callback) && mDrawCallbacks.isEmpty() && mCompositor.isReady()) {
+      mCompositor.enableLayerUpdateNotifications(false);
+    }
+  }
+
+  /**
+   * Get the current clear color when drawing.
+   *
+   * @return Curent clear color.
+   */
+  public int getClearColor() {
+    ThreadUtils.assertOnUiThread();
+    return mDefaultClearColor;
+  }
+
+  /**
+   * Set the clear color when drawing. Default is Color.WHITE.
+   *
+   * @param color Clear color.
+   */
+  public void setClearColor(final int color) {
+    ThreadUtils.assertOnUiThread();
+
+    mDefaultClearColor = color;
+    if (mCompositor.isReady()) {
+      mCompositor.setDefaultClearColor(mDefaultClearColor);
+    }
+  }
+
+  /**
+   * Get the current first paint callback.
+   *
+   * @return Current first paint callback or null if not set.
+   */
+  public @Nullable Runnable getFirstPaintCallback() {
+    ThreadUtils.assertOnUiThread();
+    return mFirstPaintCallback;
+  }
+
+  /**
+   * Set a callback to run when a document is first drawn.
+   *
+   * @param callback First paint callback.
+   */
+  public void setFirstPaintCallback(final @Nullable Runnable callback) {
+    ThreadUtils.assertOnUiThread();
+    mFirstPaintCallback = callback;
+  }
+
+  /* package */ void onFirstPaint() {
+    if (mFirstPaintCallback != null) {
+      mFirstPaintCallback.run();
+    }
+  }
+}