[Contextual Search] Adds offscreen View rendering capability

chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchInflater.java

Index: chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchInflater.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchInflater.java b/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchInflater.java
new file mode 100644
index 0000000000000000000000000000000000000000..9f78de462e763fa8baf2fe980f095580df5372e2
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchInflater.java
@@ -0,0 +1,96 @@
+// 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.compositor.bottombar.contextualsearch;
+
+import android.content.Context;
+import android.view.View;
+import android.view.ViewGroup;
+
+import org.chromium.ui.resources.dynamics.DynamicResourceLoader;
+import org.chromium.ui.resources.dynamics.ViewResourceInflater;
+
+/**
+ * A helper class for inflating Contextual Search Views.
+ */
+abstract class ContextualSearchInflater extends ViewResourceInflater {
+
+    /**
+     * The panel delegate used to get information about the panel layout.
+     */
+    private ContextualSearchPanelDelegate mSearchPanelDelegate;
+
+    /**
+     * Object Replacement Character that is used in place of HTML objects that cannot be represented
+     * as text (e.g. images). Contextual search panel should not be displaying such characters as
+     * they get shown as [obj] character.
+     */
+    private static final String OBJ_CHARACTER = "\uFFFC";
+
+    /**
+     * @param panelDelegate     The panel delegate.
+     * @param layoutId          The XML Layout that declares the View.
+     * @param viewId            The id of the root View of the Layout.
+     * @param context           The Android Context used to inflate the View.
+     * @param container         The container View used to inflate the View.
+     * @param resourceLoader    The resource loader that will handle the snapshot capturing.
+     */
+    public ContextualSearchInflater(ContextualSearchPanelDelegate panelDelegate,
+                                    int layoutId,
+                                    int viewId,
+                                    Context context,
+                                    ViewGroup container,
+                                    DynamicResourceLoader resourceLoader) {
+        super(layoutId, viewId, context, container, resourceLoader);
+
+        mSearchPanelDelegate = panelDelegate;
+    }
+
+    @Override
+    public void destroy() {
+        super.destroy();
+
+        mSearchPanelDelegate = null;
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        if (!mSearchPanelDelegate.isFullscreenSizePanel()) {
+            setWidth(mSearchPanelDelegate.getMaximumWidthPx());
+        }
+    }
+
+    @Override
+    protected int getWidthMeasureSpec() {
+        return View.MeasureSpec.makeMeasureSpec(
+                mSearchPanelDelegate.getMaximumWidthPx(), View.MeasureSpec.EXACTLY);
+    }
+
+    /**
+     * @param width The width of the view to be inforced.
+     */
+    private void setWidth(int width) {
+        // When the view is attached, we need to force the layout to have a specific width
+        // because the container is "full-width" (as wide as a tab). When not attached,
+        // ViewResourceInflater#layout() will properly resize the view offscreen.
+        if (shouldAttachView()) {
+            View view = getView();
+            if (view != null) {
+                view.getLayoutParams().width = width;
+                view.requestLayout();
+            }
+        }
+    }
+
+    /**
+     * Sanitizes a string to be displayed on the Contextual Search Bar.
+     * @param text The text to be sanitized.
+     * @return The sanitized text.
+     */
+    public static String sanitizeText(String text) {
+        if (text == null) return null;
+        return text.replace(OBJ_CHARACTER, " ").trim();
+    }
+
+}