Convert the views and data classes to Kotlin. https://redmine.stoutner.com/issues/744

[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / views / WrapVerticalContentViewPager.kt

diff --git a/app/src/main/java/com/stoutner/privacybrowser/views/WrapVerticalContentViewPager.kt b/app/src/main/java/com/stoutner/privacybrowser/views/WrapVerticalContentViewPager.kt
new file mode 100644 (file)
index 0000000..0d1f0ff
--- /dev/null
+++ b/app/src/main/java/com/stoutner/privacybrowser/views/WrapVerticalContentViewPager.kt
@@ -0,0 +1,56 @@
+/*
+ * Copyright © 2017,2019,2021 Soren Stoutner <soren@stoutner.com>.
+ *
+ * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
+ *
+ * Privacy Browser is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Privacy Browser is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Privacy Browser.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.stoutner.privacybrowser.views
+
+import android.content.Context
+import android.util.AttributeSet
+
+import androidx.viewpager.widget.ViewPager
+
+class WrapVerticalContentViewPager : ViewPager {
+    // The constructors.
+    constructor(context: Context) : super(context)
+    constructor(context: Context, attrs: AttributeSet?) : super(context, attrs)
+
+    override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
+        // Perform an initial `super.onMeasure`, which populates the child count.
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec)
+
+        // Initialize the maximum height variable.
+        var maximumHeight = 0
+
+        // Find the maximum height of each of the child views.
+        for (i in 0 until childCount) {
+            // Get the child view.
+            val childView = getChildAt(i)
+
+            // Measure the child view height with no constraints.
+            childView.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED))
+
+            // Store the child's height if it is larger than the maximum height.
+            if (childView.measuredHeight > maximumHeight) {
+                maximumHeight = childView.measuredHeight
+            }
+        }
+
+        // Perform a final `super.onMeasure` to set the maximum height.
+        super.onMeasure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(maximumHeight, MeasureSpec.EXACTLY))
+    }
+}
\ No newline at end of file