[DocsUI Peek] Top bar and back navigation (b158ee9c) · Commits · e / os / android_packages_apps_DocumentsUI

res/flag(com.android.documentsui.flags.use_material3)/layout/peek_layout.xml

+21 −3

Original line number	Diff line number	Diff line
		@@ -14,9 +14,27 @@
		limitations under the License.
		-->

		<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
		<androidx.coordinatorlayout.widget.CoordinatorLayout
		xmlns:android="http://schemas.android.com/apk/res/android"
		xmlns:app="http://schemas.android.com/apk/res-auto"
		android:id="@+id/peek_container"
		android:layout_width="match_parent"
		android:layout_height="match_parent"
		android:background="@color/peek_overlay_background"
		android:focusable="false" />
		android:background="@color/peek_overlay_scrim"
		android:focusable="false" >
		<!-- Text and icons using android:white because the underlying black scrim doesn't dynamically
		change colour. -->
		<com.google.android.material.appbar.MaterialToolbar
		android:id="@+id/peek_toolbar"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:paddingStart="@dimen/space_extra_small_4"
		android:paddingEnd="@dimen/space_extra_small_4"
		android:background="@color/peek_topbar_scrim"
		app:titleMarginStart="@dimen/space_extra_small_2"
		app:titleTextAppearance="?attr/textAppearanceTitleMedium"
		app:titleTextColor="@android:color/white"
		app:navigationContentDescription="@string/a11y_peek_navigation_icon"
		app:navigationIcon="@drawable/ic_arrow_back"
		app:navigationIconTint="@android:color/white" />
		</androidx.coordinatorlayout.widget.CoordinatorLayout>

res/flag(com.android.documentsui.flags.use_material3)/values/colors.xml

+6 −3

Original line number	Diff line number	Diff line
		@@ -93,7 +93,10 @@
		-->
		<color name="overlay_hover_color_percentage">#14000000</color> <!-- 8% -->

		<!-- Peek overlay static color. Makes the background dimmer with an 80% opacity. This color is not
		intended to be dynamic, and is defined specifically for Peek. -->
		<color name="peek_overlay_background">#CC000000</color> <!-- 80% -->
		<!-- Peek -->
		<!-- Scrim for the overlay. Static color, 80% opacity in black, defined specifically for Peek. -->
		<color name="peek_overlay_scrim">#CC000000</color>
		<!-- Scrim for the Top bar. Static color, 32% opacity in black. The same scrim is used in some
		parts of Android SysUI, it can't be used directly here. -->
		<color name="peek_topbar_scrim">#52000000</color>
		</resources>

res/values/strings.xml

+3 −0

Original line number	Diff line number	Diff line
		@@ -614,4 +614,7 @@

		<!-- Text used at the top of the text field when saving a document. [CHAR_LIMIT=100] -->
		<string name="file_name_hint">File name</string>

		<!-- Accessibility label for the Peek navigation icon. -->
		<string name="a11y_peek_navigation_icon">Hide file preview</string>
		</resources>

src/com/android/documentsui/peek/PeekFragment.kt

+32 −1

Original line number	Diff line number	Diff line
		@@ -16,17 +16,48 @@
		package com.android.documentsui.peek

		import android.os.Bundle
		import android.util.Log
		import android.view.LayoutInflater
		import android.view.View
		import android.view.ViewGroup
		import androidx.fragment.app.Fragment

		import com.android.documentsui.R
		import com.android.documentsui.base.DocumentInfo
		import com.google.android.material.appbar.MaterialToolbar

		class PeekFragment : Fragment() {
		companion object {
		const val TAG = "PeekFragment"
		}

		private lateinit var viewManager: PeekViewManager
		private lateinit var toolbar: MaterialToolbar

		override fun onCreateView(
		inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?
		): View? {
		return inflater.inflate(R.layout.peek_layout, container, /* attachToRoot= */ false)
		val view = inflater.inflate(R.layout.peek_layout, container, /* attachToRoot= */ false)
		toolbar = view.findViewById(R.id.peek_toolbar)
		toolbar.setNavigationOnClickListener {
		if (!::viewManager.isInitialized) {
		Log.e(TAG, "PeekViewManager has not been initialized")
		} else {
		viewManager.setContainerVisibility(false)
		}
		}
		return view
		}

		fun setViewManager(viewManager: PeekViewManager) {
		this.viewManager = viewManager
		}

		fun updateView(doc: DocumentInfo) {
		if (!::toolbar.isInitialized) {
		Log.e(TAG, "Toolbar has not been initialized")
		return
		}
		toolbar.title = doc.displayName
		}
		}

src/com/android/documentsui/peek/PeekViewManager.kt

+18 −22

Original line number	Diff line number	Diff line
		@@ -16,11 +16,9 @@
		package com.android.documentsui.peek

		import android.app.Activity
		import android.os.Bundle
		import android.util.Log
		import android.view.View
		import android.widget.FrameLayout
		import androidx.annotation.IdRes
		import androidx.fragment.app.FragmentManager
		import com.android.documentsui.R
		import androidx.fragment.app.FragmentTransaction
		@@ -37,7 +35,8 @@ open class PeekViewManager(
		const val TAG = "PeekViewManager"
		}

		private var mPeekFragment: PeekFragment? = null
		private lateinit var peekFragment: PeekFragment
		private lateinit var container: FrameLayout

		open fun initFragment(
		fm: FragmentManager
		@@ -47,37 +46,34 @@ open class PeekViewManager(
		return
		}

		if (getOverlayContainer() == null) {
		val container: FrameLayout? = mActivity.findViewById(R.id.peek_overlay)
		if (container == null) {
		Log.e(TAG, "Unable to find Peek container")
		return
		}
		this.container = container

		// Load the Peek fragment into its container.
		val peekFragment = PeekFragment()
		mPeekFragment = peekFragment
		peekFragment = PeekFragment()
		peekFragment.setViewManager(this)
		val ft: FragmentTransaction = fm.beginTransaction()
		ft.replace(getOverlayId(), peekFragment)
		ft.replace(R.id.peek_overlay, peekFragment)
		ft.commitAllowingStateLoss()
		}

		open fun peekDocument(doc: DocumentInfo) {
		if (mPeekFragment == null) {
		Log.e(TAG, "Peek fragment not initialized")
		if (!::peekFragment.isInitialized) {
		Log.e(TAG, "PeekFragment has not been initialized")
		return
		}
		show()
		peekFragment.updateView(doc)
		setContainerVisibility(true)
		}

		@IdRes
		private fun getOverlayId(): Int {
		return R.id.peek_overlay
		}

		private fun getOverlayContainer(): FrameLayout? {
		return mActivity.findViewById(getOverlayId())
		fun setContainerVisibility(visible: Boolean) {
		if (!::container.isInitialized) {
		Log.e(TAG, "Container has not been initialized")
		return
		}

		private fun show() {
		getOverlayContainer()?.visibility = View.VISIBLE
		container.visibility = if (visible) View.VISIBLE else View.GONE
		}
		}
		No newline at end of file