Upstream oodles of Chrome for Android code into Chromium.

chrome/android/java_staging/src/org/chromium/chrome/browser/omnibox/UrlContainer.java

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.omnibox;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.AnimatorSet;
+import android.animation.ObjectAnimator;
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.os.SystemClock;
+import android.text.Layout;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+import android.util.LayoutDirection;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.google.android.apps.chrome.R;
+
+import org.chromium.base.ApiCompatibilityUtils;
+import org.chromium.chrome.browser.util.MathUtils;
+import org.chromium.ui.interpolators.BakedBezierInterpolator;
+
+/**
+ * Widget that handles displaying the URL.  Adds the capability to show the trailing portion
+ * of the URL in a separate text widget for animations.
+ */
+public class UrlContainer extends ViewGroup {
+    private static final int MIN_TRAILING_TEXT_SHOW_DURATION_MS = 3000;
+    private static final int MAX_TRAILING_TEXT_SHOW_DURATION_MS = 6000;
+    private static final int TRAILING_TEXT_ANIMATION_DURATION_MS = 200;
+    private static final float TRAILING_TEXT_TRANSLATION_X = 50f;
+
+    private final Runnable mTriggerHideRunnable;
+    private final Runnable mTriggerHideAnimationRunnable;
+
+    private UrlBar mUrlBarView;
+    private TextView mTrailingTextView;
+
+    private int mUrlBarTextWidth;
+    private boolean mShowTrailingText;
+    private Animator mTrailingTextAnimator;
+    private long mLastShowRequestTime;
+    private boolean mUseDarkColors;
+
+    /**
+     * Constructor used to inflate from XML.
+     */
+    public UrlContainer(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        mTriggerHideRunnable = new Runnable() {
+            @Override
+            public void run() {
+                setTrailingTextVisible(false);
+            }
+        };
+        mTriggerHideAnimationRunnable = new Runnable() {
+            @Override
+            public void run() {
+                hideTrailingText();
+            }
+        };
+
+        mUseDarkColors = true;
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+
+        mUrlBarView = (UrlBar) findViewById(R.id.url_bar);
+        assert mUrlBarView != null : "url_bar is not defined as a child.";
+
+        mTrailingTextView = (TextView) findViewById(R.id.trailing_text);
+        assert mTrailingTextView != null : "trailing_text is not defined as a child.";
+
+        setClickable(true);
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+
+        int specWidth = MeasureSpec.getSize(widthMeasureSpec);
+        mUrlBarView.measure(
+                MeasureSpec.makeMeasureSpec(specWidth, MeasureSpec.EXACTLY), heightMeasureSpec);
+
+        if (TextUtils.isEmpty(mUrlBarView.getText())) {
+            mUrlBarTextWidth = specWidth;
+        } else if (mUrlBarView.hasFocus()) {
+            mUrlBarTextWidth = specWidth;
+        } else {
+            mUrlBarTextWidth = (int) Math.ceil(Math.min(specWidth,
+                    Layout.getDesiredWidth(mUrlBarView.getText(), mUrlBarView.getPaint())));
+        }
+        mTrailingTextView.measure(
+                MeasureSpec.makeMeasureSpec(specWidth - mUrlBarTextWidth, MeasureSpec.EXACTLY),
+                heightMeasureSpec);
+    }
+
+    @SuppressLint("NewApi")
+    @Override
+    public void onRtlPropertiesChanged(int layoutDirection) {
+        super.onRtlPropertiesChanged(layoutDirection);
+
+        // Layout direction is driven by the text direction of the URL bar, so we just force
+        // the path text view to match.
+        switch (layoutDirection) {
+            case LayoutDirection.LTR:
+                ApiCompatibilityUtils.setTextDirection(mTrailingTextView, TEXT_DIRECTION_LTR);
+                break;
+            case LayoutDirection.RTL:
+                ApiCompatibilityUtils.setTextDirection(mTrailingTextView, TEXT_DIRECTION_RTL);
+                break;
+            case LayoutDirection.LOCALE:
+                ApiCompatibilityUtils.setTextDirection(mTrailingTextView, TEXT_DIRECTION_LOCALE);
+                break;
+            case LayoutDirection.INHERIT:
+            default:
+                ApiCompatibilityUtils.setTextDirection(mTrailingTextView, TEXT_DIRECTION_INHERIT);
+                break;
+        }
+    }
+
+    @Override
+    protected void onLayout(boolean changed, int l, int t, int r, int b) {
+        int height = b - t;
+        layoutChild(mUrlBarView, height, 0);
+        if (ApiCompatibilityUtils.isLayoutRtl(mUrlBarView)) {
+            layoutChild(mTrailingTextView, height, 0);
+        } else {
+            layoutChild(mTrailingTextView, height, mUrlBarTextWidth);
+        }
+    }
+
+    private static void layoutChild(View view, int parentHeight, int childLeft) {
+        int childTop = (parentHeight - view.getMeasuredHeight()) / 2;
+        view.layout(
+                childLeft,
+                childTop,
+                childLeft + view.getMeasuredWidth(),
+                childTop + view.getMeasuredHeight());
+    }
+
+    /**
+     * Sets the text to be displayed.
+     *
+     * @param displayText The primary display text to be shown.
+     * @param trailingText The additional trailing text to be shown after the display text.
+     * @param originalText The text that will be displayed if no display text is specified, and
+     *                     is also supplied to features such as cut and copy.
+     * @return Whether any components of the URL have changed.
+     */
+    public boolean setUrlText(String displayText, String trailingText, String originalText) {
+        boolean changed = mUrlBarView.setUrl(originalText, displayText);
+        if (changed && mTrailingTextView.getVisibility() == VISIBLE) requestLayout();
+
+        if (trailingText == null) trailingText = "";
+        if (!trailingText.equals(mTrailingTextView.getText())) {
+            mTrailingTextView.setText(trailingText);
+            changed |= true;
+        }
+        return changed;
+    }
+
+    /**
+     * Specifies whether the trailing URL text should use dark text colors or light colors.
+     * @param useDarkColors Whether the text colors should be dark (i.e. appropriate for use
+     *                      on a light background).
+     */
+    public void setUseDarkTextColors(boolean useDarkColors) {
+        mUseDarkColors = useDarkColors;
+        mUrlBarView.setUseDarkTextColors(mUseDarkColors);
+
+        int trailingTextColorId = R.color.url_emphasis_non_emphasized_text;
+        if (!mUseDarkColors) {
+            trailingTextColorId = R.color.url_emphasis_light_non_emphasized_text;
+        }
+        mTrailingTextView.setTextColor(getResources().getColor(trailingTextColorId));
+    }
+
+    /**
+     * Updates the visibility of the trailing text view.
+     * @param visible Whether the trailing text view should be visible.
+     */
+    public void setTrailingTextVisible(boolean visible) {
+        if (visible) mLastShowRequestTime = SystemClock.uptimeMillis();
+
+        if (visible == mShowTrailingText) return;
+        mShowTrailingText = visible;
+
+        removeCallbacks(mTriggerHideRunnable);
+        removeCallbacks(mTriggerHideAnimationRunnable);
+
+        if (visible) {
+            if (mTrailingTextAnimator != null && mTrailingTextAnimator.isRunning()) {
+                mTrailingTextAnimator.cancel();
+            } else {
+                float translationX = MathUtils.flipSignIf(
+                        TRAILING_TEXT_TRANSLATION_X, ApiCompatibilityUtils.isLayoutRtl(this));
+                mTrailingTextView.setAlpha(0f);
+                mTrailingTextView.setTranslationX(translationX);
+            }
+            // Canceling the other animation will set the visibility to GONE, so only update
+            // this to VISIBLE after the above call to cancel().
+            mTrailingTextView.setVisibility(VISIBLE);
+
+            if (!TextUtils.isEmpty(mTrailingTextView.getText())) {
+                mUrlBarView.setAccessibilityTextOverride(
+                        TextUtils.concat(mUrlBarView.getText(), mTrailingTextView.getText())
+                                .toString());
+            }
+
+            AnimatorSet set = new AnimatorSet();
+            set.playTogether(
+                    ObjectAnimator.ofFloat(mTrailingTextView, ALPHA, 1f),
+                    ObjectAnimator.ofFloat(mTrailingTextView, TRANSLATION_X, 0f));
+            set.setDuration(TRAILING_TEXT_ANIMATION_DURATION_MS);
+            set.setInterpolator(BakedBezierInterpolator.FADE_IN_CURVE);
+            set.addListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationEnd(Animator animation) {
+                    super.onAnimationEnd(animation);
+                    mTrailingTextAnimator = null;
+                }
+            });
+            set.start();
+            mTrailingTextAnimator = set;
+
+            postDelayed(mTriggerHideRunnable, MAX_TRAILING_TEXT_SHOW_DURATION_MS);
+        } else {
+            long elapsedTime = SystemClock.uptimeMillis() - mLastShowRequestTime;
+            if (elapsedTime >= MIN_TRAILING_TEXT_SHOW_DURATION_MS) {
+                hideTrailingText();
+            } else {
+                postDelayed(mTriggerHideAnimationRunnable,
+                        MIN_TRAILING_TEXT_SHOW_DURATION_MS - elapsedTime);
+            }
+        }
+    }
+
+    private void hideTrailingText() {
+        if (mTrailingTextAnimator != null && mTrailingTextAnimator.isRunning()) {
+            mTrailingTextAnimator.cancel();
+        }
+
+        mUrlBarView.setAccessibilityTextOverride(null);
+
+        float translationX = MathUtils.flipSignIf(
+                TRAILING_TEXT_TRANSLATION_X, ApiCompatibilityUtils.isLayoutRtl(this));
+
+        AnimatorSet set = new AnimatorSet();
+        set.playTogether(
+                ObjectAnimator.ofFloat(mTrailingTextView, ALPHA, 0f),
+                ObjectAnimator.ofFloat(mTrailingTextView, TRANSLATION_X, translationX));
+        set.setDuration(TRAILING_TEXT_ANIMATION_DURATION_MS);
+        set.setInterpolator(BakedBezierInterpolator.FADE_OUT_CURVE);
+        set.addListener(new AnimatorListenerAdapter() {
+            @Override
+            public void onAnimationEnd(Animator animation) {
+                super.onAnimationEnd(animation);
+                mTrailingTextView.setVisibility(GONE);
+                mTrailingTextAnimator = null;
+            }
+        });
+        set.start();
+        mTrailingTextAnimator = set;
+    }
+}