diff options
Diffstat (limited to 'common/src/com/android/tv/common/ui/setup/SetupGuidedStepFragment.java')
| -rw-r--r-- | common/src/com/android/tv/common/ui/setup/SetupGuidedStepFragment.java | 133 |
1 files changed, 111 insertions, 22 deletions
diff --git a/common/src/com/android/tv/common/ui/setup/SetupGuidedStepFragment.java b/common/src/com/android/tv/common/ui/setup/SetupGuidedStepFragment.java index 7bce9c27..3c76c269 100644 --- a/common/src/com/android/tv/common/ui/setup/SetupGuidedStepFragment.java +++ b/common/src/com/android/tv/common/ui/setup/SetupGuidedStepFragment.java @@ -16,22 +16,26 @@ package com.android.tv.common.ui.setup; +import static android.content.Context.ACCESSIBILITY_SERVICE; + import android.os.Bundle; import android.support.v17.leanback.app.GuidedStepFragment; import android.support.v17.leanback.widget.GuidanceStylist; import android.support.v17.leanback.widget.GuidedAction; +import android.support.v17.leanback.widget.GuidedActionsStylist; import android.support.v17.leanback.widget.VerticalGridView; import android.view.LayoutInflater; import android.view.View; +import android.view.View.AccessibilityDelegate; import android.view.ViewGroup; import android.view.ViewGroup.MarginLayoutParams; +import android.view.accessibility.AccessibilityEvent; +import android.view.accessibility.AccessibilityManager; +import android.view.accessibility.AccessibilityNodeInfo; import android.widget.LinearLayout; - import com.android.tv.common.R; -/** - * A fragment for channel source info/setup. - */ +/** A fragment for channel source info/setup. */ public abstract class SetupGuidedStepFragment extends GuidedStepFragment { /** * Key of the argument which indicate whether the parent of this fragment has three panes. @@ -40,23 +44,30 @@ public abstract class SetupGuidedStepFragment extends GuidedStepFragment { */ public static final String KEY_THREE_PANE = "key_three_pane"; + private View mContentFragment; + private boolean mFromContentFragment; + private boolean mAccessibilityMode; + @Override - public View onCreateView(LayoutInflater inflater, ViewGroup container, - Bundle savedInstanceState) { + public View onCreateView( + LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = super.onCreateView(inflater, container, savedInstanceState); Bundle arguments = getArguments(); view.findViewById(android.support.v17.leanback.R.id.action_fragment_root) .setPadding(0, 0, 0, 0); - LinearLayout.LayoutParams guidanceLayoutParams = (LinearLayout.LayoutParams) - view.findViewById(android.support.v17.leanback.R.id.content_fragment) - .getLayoutParams(); + mContentFragment = view.findViewById(android.support.v17.leanback.R.id.content_fragment); + LinearLayout.LayoutParams guidanceLayoutParams = + (LinearLayout.LayoutParams) mContentFragment.getLayoutParams(); guidanceLayoutParams.weight = 0; if (arguments != null && arguments.getBoolean(KEY_THREE_PANE, false)) { // Content fragment. - guidanceLayoutParams.width = getResources().getDimensionPixelOffset( - R.dimen.setup_guidedstep_guidance_section_width_3pane); - int doneButtonWidth = getResources().getDimensionPixelOffset( - R.dimen.setup_done_button_container_width); + guidanceLayoutParams.width = + getResources() + .getDimensionPixelOffset( + R.dimen.setup_guidedstep_guidance_section_width_3pane); + int doneButtonWidth = + getResources() + .getDimensionPixelOffset(R.dimen.setup_done_button_container_width); // Guided actions list View list = view.findViewById(android.support.v17.leanback.R.id.guidedactions_list); MarginLayoutParams marginLayoutParams = (MarginLayoutParams) list.getLayoutParams(); @@ -69,13 +80,16 @@ public abstract class SetupGuidedStepFragment extends GuidedStepFragment { } } else { // Content fragment. - guidanceLayoutParams.width = getResources().getDimensionPixelOffset( - R.dimen.setup_guidedstep_guidance_section_width_2pane); + guidanceLayoutParams.width = + getResources() + .getDimensionPixelOffset( + R.dimen.setup_guidedstep_guidance_section_width_2pane); } // gridView Alignment VerticalGridView gridView = getGuidedActionsStylist().getActionsGridView(); - int offset = getResources().getDimensionPixelOffset( - R.dimen.setup_guidedactions_selector_margin_top); + int offset = + getResources() + .getDimensionPixelOffset(R.dimen.setup_guidedactions_selector_margin_top); gridView.setWindowAlignmentOffset(offset); gridView.setWindowAlignmentOffsetPercent(0); gridView.setItemAlignmentOffsetPercent(0); @@ -83,19 +97,51 @@ public abstract class SetupGuidedStepFragment extends GuidedStepFragment { .setTransitionGroup(false); // Needed for the shared element transition. // content_frame is defined in leanback. - ViewGroup group = (ViewGroup) view.findViewById( - android.support.v17.leanback.R.id.content_frame); + ViewGroup group = + (ViewGroup) view.findViewById(android.support.v17.leanback.R.id.content_frame); group.setClipChildren(false); group.setClipToPadding(false); return view; } @Override + public GuidedActionsStylist onCreateActionsStylist() { + return new SetupGuidedStepFragmentGuidedActionsStylist(); + } + + @Override + public void onResume() { + super.onResume(); + AccessibilityManager am = + (AccessibilityManager) getActivity().getSystemService(ACCESSIBILITY_SERVICE); + mAccessibilityMode = am != null && am.isEnabled() && am.isTouchExplorationEnabled(); + mContentFragment.setFocusable(mAccessibilityMode); + if (mAccessibilityMode) { + mContentFragment.setAccessibilityDelegate( + new AccessibilityDelegate() { + @Override + public boolean performAccessibilityAction(View host, int action, Bundle args) { + if (action == AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS + && !getActions().isEmpty()) { + // scroll to the top. This makes the first action view on the screen. + // Otherwise, the view can be recycled, so accessibility events cannot + // be sent later. + getGuidedActionsStylist().getActionsGridView().scrollToPosition(0); + mFromContentFragment = true; + } + return super.performAccessibilityAction(host, action, args); + } + }); + mContentFragment.requestFocus(); + } + } + + @Override public GuidanceStylist onCreateGuidanceStylist() { return new GuidanceStylist() { @Override - public View onCreateView(LayoutInflater inflater, ViewGroup container, - Guidance guidance) { + public View onCreateView( + LayoutInflater inflater, ViewGroup container, Guidance guidance) { View view = super.onCreateView(inflater, container, guidance); if (guidance.getIconDrawable() == null) { // Icon view should not take up space when we don't use image. @@ -106,10 +152,19 @@ public abstract class SetupGuidedStepFragment extends GuidedStepFragment { }; } - abstract protected String getActionCategory(); + protected abstract String getActionCategory(); + + protected View getDoneButton() { + return getActivity().findViewById(R.id.button_done); + } @Override public void onGuidedActionClicked(GuidedAction action) { + if (!action.isFocusable()) { + // an unfocusable action may be clicked in accessibility mode when it's accessibility + // focused + return; + } SetupActionHelper.onActionClick(this, getActionCategory(), (int) action.getId()); } @@ -122,4 +177,38 @@ public abstract class SetupGuidedStepFragment extends GuidedStepFragment { public boolean isFocusOutEndAllowed() { return true; } + + protected void setAccessibilityDelegate(GuidedActionsStylist.ViewHolder vh, + GuidedAction action) { + if (!mAccessibilityMode || findActionPositionById(action.getId()) == 0) { + return; + } + vh.itemView.setAccessibilityDelegate( + new AccessibilityDelegate() { + @Override + public boolean performAccessibilityAction(View host, int action, Bundle args) { + if ((action == AccessibilityNodeInfo.ACTION_FOCUS + || action == AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS) + && mFromContentFragment) { + // block the action and make the first action view accessibility focused + View view = getActionItemView(0); + if (view != null) { + view.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED); + mFromContentFragment = false; + return true; + } + } + return super.performAccessibilityAction(host, action, args); + } + }); + } + + private class SetupGuidedStepFragmentGuidedActionsStylist extends GuidedActionsStylist { + + @Override + public void onBindViewHolder(GuidedActionsStylist.ViewHolder vh, GuidedAction action) { + super.onBindViewHolder(vh, action); + setAccessibilityDelegate(vh, action); + } + } } |