| 1 | // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | package org.chromium.content_shell; |
| 6 | |
| 7 | import android.content.Context; |
| 8 | import android.graphics.drawable.ClipDrawable; |
| 9 | import android.text.TextUtils; |
| 10 | import android.util.AttributeSet; |
| 11 | import android.view.KeyEvent; |
| 12 | import android.view.View; |
| 13 | import android.view.inputmethod.EditorInfo; |
| 14 | import android.view.inputmethod.InputMethodManager; |
| 15 | import android.widget.EditText; |
| 16 | import android.widget.FrameLayout; |
| 17 | import android.widget.ImageButton; |
| 18 | import android.widget.LinearLayout; |
| 19 | import android.widget.TextView; |
| 20 | import android.widget.TextView.OnEditorActionListener; |
| 21 | |
| 22 | import org.chromium.base.CalledByNative; |
| 23 | import org.chromium.base.JNINamespace; |
| 24 | import org.chromium.content.browser.ContentView; |
| 25 | import org.chromium.content.browser.ContentViewRenderView; |
| 26 | import org.chromium.content.browser.LoadUrlParams; |
| 27 | import org.chromium.ui.WindowAndroid; |
| 28 | |
| 29 | /** |
| 30 | * Container for the various UI components that make up a shell window. |
| 31 | */ |
| 32 | @JNINamespace("content") |
| 33 | public class Shell extends LinearLayout { |
| 34 | |
| 35 | private static final long COMPLETED_PROGRESS_TIMEOUT_MS = 200; |
| 36 | |
| 37 | private Runnable mClearProgressRunnable = new Runnable() { |
| 38 | @Override |
| 39 | public void run() { |
| 40 | mProgressDrawable.setLevel(0); |
| 41 | } |
| 42 | }; |
| 43 | |
| 44 | // TODO(jrg): a mContentView.destroy() call is needed, both upstream and downstream. |
| 45 | private ContentView mContentView; |
| 46 | private EditText mUrlTextView; |
| 47 | private ImageButton mPrevButton; |
| 48 | private ImageButton mNextButton; |
| 49 | |
| 50 | private ClipDrawable mProgressDrawable; |
| 51 | |
| 52 | private ContentViewRenderView mContentViewRenderView; |
| 53 | private WindowAndroid mWindow; |
| 54 | |
| 55 | private boolean mLoading = false; |
| 56 | |
| 57 | /** |
| 58 | * Constructor for inflating via XML. |
| 59 | */ |
| 60 | public Shell(Context context, AttributeSet attrs) { |
| 61 | super(context, attrs); |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * Set the SurfaceView being renderered to as soon as it is available. |
| 66 | */ |
| 67 | public void setContentViewRenderView(ContentViewRenderView contentViewRenderView) { |
| 68 | FrameLayout contentViewHolder = (FrameLayout) findViewById(R.id.contentview_holder); |
| 69 | if (contentViewRenderView == null) { |
| 70 | if (mContentViewRenderView != null) { |
| 71 | contentViewHolder.removeView(mContentViewRenderView); |
| 72 | } |
| 73 | } else { |
| 74 | contentViewHolder.addView(contentViewRenderView, |
| 75 | new FrameLayout.LayoutParams( |
| 76 | FrameLayout.LayoutParams.MATCH_PARENT, |
| 77 | FrameLayout.LayoutParams.MATCH_PARENT)); |
| 78 | } |
| 79 | mContentViewRenderView = contentViewRenderView; |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * @param window The owning window for this shell. |
| 84 | */ |
| 85 | public void setWindow(WindowAndroid window) { |
| 86 | mWindow = window; |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * @return Whether or not the Shell is loading content. |
| 91 | */ |
| 92 | public boolean isLoading() { |
| 93 | return mLoading; |
| 94 | } |
| 95 | |
| 96 | @Override |
| 97 | protected void onFinishInflate() { |
| 98 | super.onFinishInflate(); |
| 99 | |
| 100 | mProgressDrawable = (ClipDrawable) findViewById(R.id.toolbar).getBackground(); |
| 101 | initializeUrlField(); |
| 102 | initializeNavigationButtons(); |
| 103 | } |
| 104 | |
| 105 | private void initializeUrlField() { |
| 106 | mUrlTextView = (EditText) findViewById(R.id.url); |
| 107 | mUrlTextView.setOnEditorActionListener(new OnEditorActionListener() { |
| 108 | @Override |
| 109 | public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { |
| 110 | if ((actionId != EditorInfo.IME_ACTION_GO) && (event == null || |
| 111 | event.getKeyCode() != KeyEvent.KEYCODE_ENTER || |
| 112 | event.getAction() != KeyEvent.ACTION_DOWN)) { |
| 113 | return false; |
| 114 | } |
| 115 | loadUrl(mUrlTextView.getText().toString()); |
| 116 | setKeyboardVisibilityForUrl(false); |
| 117 | mContentView.requestFocus(); |
| 118 | return true; |
| 119 | } |
| 120 | }); |
| 121 | mUrlTextView.setOnFocusChangeListener(new OnFocusChangeListener() { |
| 122 | @Override |
| 123 | public void onFocusChange(View v, boolean hasFocus) { |
| 124 | setKeyboardVisibilityForUrl(hasFocus); |
| 125 | mNextButton.setVisibility(hasFocus ? GONE : VISIBLE); |
| 126 | mPrevButton.setVisibility(hasFocus ? GONE : VISIBLE); |
| 127 | if (!hasFocus) { |
| 128 | mUrlTextView.setText(mContentView.getUrl()); |
| 129 | } |
| 130 | } |
| 131 | }); |
| 132 | } |
| 133 | |
| 134 | /** |
| 135 | * Loads an URL. This will perform minimal amounts of sanitizing of the URL to attempt to |
| 136 | * make it valid. |
| 137 | * |
| 138 | * @param url The URL to be loaded by the shell. |
| 139 | */ |
| 140 | public void loadUrl(String url) { |
| 141 | if (url == null) return; |
| 142 | |
| 143 | if (TextUtils.equals(url, mContentView.getUrl())) { |
| 144 | mContentView.reload(); |
| 145 | } else { |
| 146 | mContentView.loadUrl(new LoadUrlParams(sanitizeUrl(url))); |
| 147 | } |
| 148 | mUrlTextView.clearFocus(); |
| 149 | // TODO(aurimas): Remove this when crbug.com/174541 is fixed. |
| 150 | mContentView.clearFocus(); |
| 151 | mContentView.requestFocus(); |
| 152 | } |
| 153 | |
| 154 | /** |
| 155 | * Given an URL, this performs minimal sanitizing to ensure it will be valid. |
| 156 | * @param url The url to be sanitized. |
| 157 | * @return The sanitized URL. |
| 158 | */ |
| 159 | public static String sanitizeUrl(String url) { |
| 160 | if (url == null) return url; |
| 161 | if (url.startsWith("www.") || url.indexOf(":") == -1) url = "http://" + url; |
| 162 | return url; |
| 163 | } |
| 164 | |
| 165 | private void initializeNavigationButtons() { |
| 166 | mPrevButton = (ImageButton) findViewById(R.id.prev); |
| 167 | mPrevButton.setOnClickListener(new OnClickListener() { |
| 168 | @Override |
| 169 | public void onClick(View v) { |
| 170 | if (mContentView.canGoBack()) mContentView.goBack(); |
| 171 | } |
| 172 | }); |
| 173 | |
| 174 | mNextButton = (ImageButton) findViewById(R.id.next); |
| 175 | mNextButton.setOnClickListener(new OnClickListener() { |
| 176 | @Override |
| 177 | public void onClick(View v) { |
| 178 | if (mContentView.canGoForward()) mContentView.goForward(); |
| 179 | } |
| 180 | }); |
| 181 | } |
| 182 | |
| 183 | @SuppressWarnings("unused") |
| 184 | @CalledByNative |
| 185 | private void onUpdateUrl(String url) { |
| 186 | mUrlTextView.setText(url); |
| 187 | } |
| 188 | |
| 189 | @SuppressWarnings("unused") |
| 190 | @CalledByNative |
| 191 | private void onLoadProgressChanged(double progress) { |
| 192 | removeCallbacks(mClearProgressRunnable); |
| 193 | mProgressDrawable.setLevel((int) (10000.0 * progress)); |
| 194 | if (progress == 1.0) postDelayed(mClearProgressRunnable, COMPLETED_PROGRESS_TIMEOUT_MS); |
| 195 | } |
| 196 | |
| 197 | @CalledByNative |
| 198 | private void toggleFullscreenModeForTab(boolean enterFullscreen) { |
| 199 | } |
| 200 | |
| 201 | @CalledByNative |
| 202 | private boolean isFullscreenForTabOrPending() { |
| 203 | return false; |
| 204 | } |
| 205 | |
| 206 | @SuppressWarnings("unused") |
| 207 | @CalledByNative |
| 208 | private void setIsLoading(boolean loading) { |
| 209 | mLoading = loading; |
| 210 | } |
| 211 | |
| 212 | /** |
| 213 | * Initializes the ContentView based on the native tab contents pointer passed in. |
| 214 | * @param nativeTabContents The pointer to the native tab contents object. |
| 215 | */ |
| 216 | @SuppressWarnings("unused") |
| 217 | @CalledByNative |
| 218 | private void initFromNativeTabContents(int nativeTabContents) { |
| 219 | mContentView = ContentView.newInstance(getContext(), nativeTabContents, mWindow); |
| 220 | if (mContentView.getUrl() != null) mUrlTextView.setText(mContentView.getUrl()); |
| 221 | ((FrameLayout) findViewById(R.id.contentview_holder)).addView(mContentView, |
| 222 | new FrameLayout.LayoutParams( |
| 223 | FrameLayout.LayoutParams.MATCH_PARENT, |
| 224 | FrameLayout.LayoutParams.MATCH_PARENT)); |
| 225 | mContentView.requestFocus(); |
| 226 | mContentViewRenderView.setCurrentContentView(mContentView); |
| 227 | } |
| 228 | |
| 229 | /** |
| 230 | * @return The {@link ContentView} currently shown by this Shell. |
| 231 | */ |
| 232 | public ContentView getContentView() { |
| 233 | return mContentView; |
| 234 | } |
| 235 | |
| 236 | private void setKeyboardVisibilityForUrl(boolean visible) { |
| 237 | InputMethodManager imm = (InputMethodManager) getContext().getSystemService( |
| 238 | Context.INPUT_METHOD_SERVICE); |
| 239 | if (visible) { |
| 240 | imm.showSoftInput(mUrlTextView, InputMethodManager.SHOW_IMPLICIT); |
| 241 | } else { |
| 242 | imm.hideSoftInputFromWindow(mUrlTextView.getWindowToken(), 0); |
| 243 | } |
| 244 | } |
| 245 | } |