Add SearchBox support to preloader.

Depends on change: I0119243ed0e19e237c1f51de887af5c954f96693

Change-Id: I2a2d3ff3c9d0d79f34af4c8daee828fb4efd7519

1 files changed, 107 insertions, 0 deletions

diff --git a/src/com/android/browser/PreloadedTabControl.java b/src/com/android/browser/PreloadedTabControl.java
new file mode 100644
index 000000000..99592fb91
--- /dev/null
+++ b/src/com/android/browser/PreloadedTabControl.java
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.browser;
+
+import android.text.TextUtils;
+import android.util.Log;
+import android.webkit.SearchBox;
+
+import java.util.Map;
+
+/**
+ * Class to manage the controlling of preloaded tab.
+ */
+public class PreloadedTabControl {
+    private static final boolean LOGD_ENABLED = true;//com.android.browser.Browser.LOGD_ENABLED;
+    private static final String LOGTAG = "PreloadedTabControl";
+
+    final Tab mTab;
+    private String mLastQuery;
+    private boolean mDestroyed;
+
+    public PreloadedTabControl(Tab t) {
+        mTab = t;
+    }
+
+    private void maybeSetQuery(String query, SearchBox sb) {
+        if (!TextUtils.equals(mLastQuery, query)) {
+            if (sb != null) {
+                if (LOGD_ENABLED) Log.d(LOGTAG, "Changing searchbox query to " + query);
+                sb.setVerbatim(true);
+                sb.setQuery(query);
+                sb.onchange();
+                mLastQuery = query;
+            } else {
+                if (LOGD_ENABLED) Log.d(LOGTAG, "Cannot set query: no searchbox interface");
+            }
+        }
+    }
+
+    public void setQuery(String query) {
+        maybeSetQuery(query, mTab.getWebView().getSearchBox());
+    }
+
+    public boolean searchBoxSubmit(final String query,
+            final String fallbackUrl, final Map<String, String> fallbackHeaders) {
+        final SearchBox sb = mTab.getWebView().getSearchBox();
+        if (sb == null) {
+            // no searchbox, cannot submit. Fallback to regular tab creation
+            if (LOGD_ENABLED) Log.d(LOGTAG, "No searchbox, cannot submit query");
+            return false;
+        }
+        sb.isSupported(new SearchBox.IsSupportedCallback() {
+            @Override
+            public void searchBoxIsSupported(boolean supported) {
+                if (LOGD_ENABLED) Log.d(LOGTAG, "SearchBox supported: " + supported);
+                if (mDestroyed) {
+                    if (LOGD_ENABLED) Log.d(LOGTAG, "tab has been destroyed");
+                    return;
+                }
+                if (supported) {
+                    maybeSetQuery(query, sb);
+                    if (LOGD_ENABLED) Log.d(LOGTAG, "Submitting query " + query);
+                    sb.onsubmit();
+                } else {
+                    if (LOGD_ENABLED) Log.d(LOGTAG, "SearchBox not supported; falling back");
+                    loadUrl(fallbackUrl, fallbackHeaders);
+                }
+                mTab.getWebView().clearHistory();
+            }
+        });
+        return true;
+    }
+
+    public void loadUrlIfChanged(String url, Map<String, String> headers) {
+        if (!TextUtils.equals(url, mTab.getUrl())) {
+            loadUrl(url, headers);
+        }
+    }
+
+    public void loadUrl(String url, Map<String, String> headers) {
+        if (LOGD_ENABLED) Log.d(LOGTAG, "Preloading " + url);
+        mTab.loadUrl(url, headers);
+    }
+
+    public void destroy() {
+        mDestroyed = true;
+        mTab.destroy();
+    }
+
+    public Tab getTab() {
+        return mTab;
+    }
+
+}